What is a resistor? How does current branch in a network of resistors? How does it "know" how much should flow in each branch? While some detail is given in science and engineering courses about conductors, insulators and semiconductors, resistance is described in several ways. Examples include i. The restriction to the flow of electrons. ii. The difficulty in moving electrical current through a conductor to which voltage is applied. iii. a circuit element which dissipates energy in the form of heat . More appropriate description for a resistor would be the property of a conductor which determines the current produced by a given difference of potential. This makes us remember that a resistor is a conductor first. And, there is reason to say that superconductive wires dont obey ohm's law. So all conductors are resistive, though not superconductors. Resistors are used in circuits to regulate the strengths of currents either by reducing the diameter of conductors or introducing more obstacles or lattice imperfections to reduce the strength of current. The current branches in a parallel network by an elaborate rearrangement of surface charge. For more details about resistance, how current branches in a parallel circuit and ohm's law consult the following videos, articles and books. A working definition for current in conductors like metal wires is "the start-stop motion of millions and millions of conduction band electrons everywhere within with a drift superimposed". The e.m.f of the battery is due to separation of positive from negative charges which produces an e.m.f across its terminals and a pattern of electric field surrounding them, not exactly but like a dipole. Consider a simple circuit comprising a battery, two wires and a resistor. An electric field is there in the wires and in the resistor; powerful electric field and uniform within the resistor, weak and uniform within the wires. The field is set up by a tiny amount of surface charge with a steep gradient on the resistor and not so steep a gradient on the wires. It is the electric field E created by the surface charges sourced from the battery, which produces a force causing the mobile electrons to acquire a drift velocity v = μE, where 'μ' is the mobility which is a number representing the freedom of movement of the electron in the lattice. This results in a current density J = σE, where σ is the conductivity of the wire or material of resistor and E is the electric field in the wire if considering wire and is the field in the resistor when considering the resistor. The p.d. or voltage across the resistor is the integral of a constant powerful field along its length. The p.d. or voltage across the wires is the integral of a constant but weak field along its length. Voltage is entirely because of the surface charges. For a live demonstration of surface charge and its effects in circuits visit ua-cam.com/video/U7RLg-691eQ/v-deo.html Electrostatics and circuits belong to one science and not two, that of electricity and magnetism. To know how they are unified visit this link matterandinteractions.org/articles-talks/ and view the article 'A unified treatment of electrostatics and circuits. B. Sherwood and R. Chabay, unpublished. (1999)' pdf. For a detailed discussion of surface charge, electric fields, currents, voltage, voltage source, difference between e.m.f. and potential difference, ideal voltage sources, capacitors, inductors, transmission lines, electromagnetic waves, antennas and radiation, see Electric and Magnetic Interactions by Chabay and Sherwood www.matterandinteractions.org or Fundamentals of electric theory and circuits by Sridhar Chitta www.wileyindia.com/fundamentals-of-electric-theory-and-circuits.html There is a "look inside" feature in the amazon.com webpage of the book "Fundamentals of electric theory and circuits" by Sridhar Chitta with a few pages of Chapter 1 which may be viewed and also which you may swipe left or press < icon to view the foreword, preface and Table of Contents. For a lecture by Prof Ruth Chabay on surface charge in a simple dc circuit visit ua-cam.com/video/-7W294N_Hkk/v-deo.html
Try to work smartly and not hard. You cannot read all the books in your library leave alone those in the world. While resistance is associated with the property of opposition to current, conductance is more a mathematical convenience being the reciprocal of resistance. That is why sir says it is a matter of the way of defining. Get the physics correct which is more important. What is a resistor? How does current branch in a network of resistors? How does it "know" how much should flow in each branch? While some detail is given in science and engineering courses about conductors, insulators and semiconductors, resistance is described in several ways. Examples include i. The restriction to the flow of electrons. ii. The difficulty in moving electrical current through a conductor to which voltage is applied. iii. a circuit element which dissipates energy in the form of heat . More appropriate description for a resistor would be the property of a conductor which determines the current produced by a given difference of potential. This makes us remember that a resistor is a conductor first. And, there is reason to say that superconductive wires dont obey ohm's law. So all conductors are resistive, though not superconductors. Resistors are used in circuits to regulate the strengths of currents either by reducing the diameter of conductors or introducing more obstacles or lattice imperfections to reduce the strength of current. The current branches in a parallel network by an elaborate rearrangement of surface charge. For more details about resistance, how current branches in a parallel circuit and ohm's law consult the following videos, articles and books. A working definition for current in conductors like metal wires is "the start-stop motion of millions and millions of conduction band electrons everywhere within with a drift superimposed". The e.m.f of the battery is due to separation of positive from negative charges which produces an e.m.f across its terminals and a pattern of electric field surrounding them, not exactly but like a dipole. Consider a simple circuit comprising a battery, two wires and a resistor. An electric field is there in the wires and in the resistor; powerful electric field and uniform within the resistor, weak and uniform within the wires. The field is set up by a tiny amount of surface charge with a steep gradient on the resistor and not so steep a gradient on the wires. It is the electric field E created by the surface charges sourced from the battery, which produces a force causing the mobile electrons to acquire a drift velocity v = μE, where 'μ' is the mobility which is a number representing the freedom of movement of the electron in the lattice. This results in a current density J = σE, where σ is the conductivity of the wire or material of resistor and E is the electric field in the wire if considering wire and is the field in the resistor when considering the resistor. The p.d. or voltage across the resistor is the integral of a constant powerful field along its length. The p.d. or voltage across the wires is the integral of a constant but weak field along its length. Voltage is entirely because of the surface charges. For a live demonstration of surface charge and its effects in circuits visit ua-cam.com/video/U7RLg-691eQ/v-deo.html Electrostatics and circuits belong to one science and not two, that of electricity and magnetism. To know how they are unified visit this link matterandinteractions.org/articles-talks/ and view the article 'A unified treatment of electrostatics and circuits. B. Sherwood and R. Chabay, unpublished. (1999)' pdf. For a detailed discussion of surface charge, electric fields, currents, voltage, voltage source, difference between e.m.f. and potential difference, ideal voltage sources, capacitors, inductors, transmission lines, electromagnetic waves, antennas and radiation, see Electric and Magnetic Interactions by Chabay and Sherwood www.matterandinteractions.org or Fundamentals of electric theory and circuits by Sridhar Chitta www.wileyindia.com/fundamentals-of-electric-theory-and-circuits.html There is a "look inside" feature in the amazon.com webpage of the book "Fundamentals of electric theory and circuits" by Sridhar Chitta with a few pages of Chapter 1 which may be viewed and also which you may swipe left or press < icon to view the foreword, preface and Table of Contents. For a lecture by Prof Ruth Chabay on surface charge in a simple dc circuit visit ua-cam.com/video/-7W294N_Hkk/v-deo.html
Sir ji we study two terms abmitence and impidence in transistor analysing the ration of voltege and current is abmitence and inverse reletion of voltege and current is impidence that means sir there you are showing relation between current and voltage is conductens and impidence is equal sir so that means we can say conductence is impidence
Really helpful ❤❤
Thank you sir
kash har koi apke jaise fast aur clear sikhaye... apne kam time mai bahot kuch cover diya that too with very good clarification
This is the best educational channel on you tube
You haven't visited baba gana yet
zabardast sir, aap ne meri 2 hafte ka tension dur kar diya
What is a resistor? How does current branch in a network of resistors? How does it "know" how much should flow in each branch?
While some detail is given in science and engineering courses about conductors, insulators and semiconductors, resistance is described in several ways.
Examples include i. The restriction to the flow of electrons. ii. The difficulty in moving electrical current through a conductor to which voltage is applied.
iii. a circuit element which dissipates energy in the form of heat .
More appropriate description for a resistor would be the property of a conductor which determines the current produced by a given difference of potential.
This makes us remember that a resistor is a conductor first. And, there is reason to say that superconductive wires dont obey ohm's law. So all conductors are resistive, though not superconductors.
Resistors are used in circuits to regulate the strengths of currents either by reducing the diameter of conductors or introducing more obstacles or lattice imperfections to reduce the strength of current.
The current branches in a parallel network by an elaborate rearrangement of surface charge.
For more details about resistance, how current branches in a parallel circuit and ohm's law consult the following videos, articles and books.
A working definition for current in conductors like metal wires is "the start-stop motion of millions and millions of conduction band electrons everywhere within with a drift superimposed".
The e.m.f of the battery is due to separation of positive from negative charges which produces an e.m.f across its terminals and a pattern of electric field surrounding them, not exactly but like a dipole.
Consider a simple circuit comprising a battery, two wires and a resistor. An electric field is there in the wires and in the resistor; powerful electric field and uniform within the resistor, weak and uniform within the wires. The field is set up by a tiny amount of surface charge with a steep gradient on the resistor and not so steep a gradient on the wires. It is the electric field E created by the surface charges sourced from the battery, which produces a force causing the mobile electrons to acquire a drift velocity v = μE, where 'μ' is the mobility which is a number representing the freedom of movement of the electron in the lattice.
This results in a current density J = σE, where σ is the conductivity of the wire or material of resistor and E is the electric field in the wire if considering wire and is the field in the resistor when considering the resistor.
The p.d. or voltage across the resistor is the integral of a constant powerful field along its length. The p.d. or voltage across the wires is the integral of a constant but weak field along its length.
Voltage is entirely because of the surface charges.
For a live demonstration of surface charge and its effects in circuits visit
ua-cam.com/video/U7RLg-691eQ/v-deo.html
Electrostatics and circuits belong to one science and not two, that of electricity and magnetism. To know how they are unified visit this link
matterandinteractions.org/articles-talks/ and view the article 'A unified treatment of electrostatics and circuits. B. Sherwood and R. Chabay, unpublished. (1999)'
pdf.
For a detailed discussion of surface charge, electric fields, currents, voltage, voltage source, difference between e.m.f. and potential difference, ideal voltage sources, capacitors, inductors, transmission lines, electromagnetic waves, antennas and radiation, see Electric and Magnetic Interactions by Chabay and Sherwood
www.matterandinteractions.org
or
Fundamentals of electric theory and circuits by Sridhar Chitta
www.wileyindia.com/fundamentals-of-electric-theory-and-circuits.html
There is a "look inside" feature in the amazon.com webpage of the book "Fundamentals of electric theory and circuits" by Sridhar Chitta with a few pages of Chapter 1 which may be viewed and also which you may swipe left or press < icon to view the foreword, preface and Table of Contents.
For a lecture by Prof Ruth Chabay on surface charge in a simple dc circuit visit
ua-cam.com/video/-7W294N_Hkk/v-deo.html
Bhai kaha se aaye ho 😮
You r best teacher and help me a lot to understand a topic 😊😊
Sir you are one of the best teacher in the world......😍😍😍😍😍😍
sir, apka teaching style best h..physics ka ek ek concepts aapse hi clear kr rha hu..
Physics se pyar karna hai to ek channel to jao named - baba gang
Edam lajawaav sir kasam se Maja aa gaya
Thank u sir ,, apki vajah se mere sabi doubt clear ho gaye💐💐💐
zabardast sir, best educational channel
🙏🙏🙏 khatarnak 🔥🔥🔥🔥🔥🔥
Good explanation sir 👍🏻👍🏻👍🏻👍🏻
Sir aap bahut hi achhi tarah se samjhate hai.....thankyou...
+QZ777 Z
Thank you for support and welcome.
Bas aap sab ki dua rahe.
awesome sir jee...keep it up.
Nice explained Sir
Thank you sir for your best explanation 🙏🙏🙏
Very good teaching your you tube channel thanks sir very nice👌👍🤘
thank you very much sir
sab mho maya hai
keep giving such type of nice Vedio thanks sir
+Ravi Kumar
Sure and thank you for support.
Bas aap sab ki dua rahe.
Best among others
you should become a iit teacher Thank you very much sir.
really sir feel aa gya resistance and conductance ka
From KUMAR Sri Debasis
teaching very fine
+Bhola Mali
Thank you.
nice sir
You are great sir thanks u a lot
Awesome sir
Thank you so much sir
Good explanation sir
So best Sir
U explained well thank you sir 😊
Nice sir
Thank you sir for clear my doubt
Thankyou sir😍
Bahut mst sir
Thanks sir
Sir what's the difference between material and conductor as u said that resistivity is the property of material
by conductor he means only the shape, size, length.. by material he refers to the material of the conductor may it be of iron,copper whatsoever..
nice way explanation sir thank you
Hello SHAIK AHMED PASHA !
You are welcome and thanks a lot for the support you have shown.
thanks
Sir kya conductance aur resistance dono ek saath kise conductor ka property ho Sakta hai please reply
Try to work smartly and not hard. You cannot read all the books in your library leave alone those in the world.
While resistance is associated with the property of opposition to current, conductance is more a mathematical convenience being the reciprocal of resistance. That is why sir says it is a matter of the way of defining. Get the physics correct which is more important.
What is a resistor? How does current branch in a network of resistors? How does it "know" how much should flow in each branch?
While some detail is given in science and engineering courses about conductors, insulators and semiconductors, resistance is described in several ways.
Examples include i. The restriction to the flow of electrons. ii. The difficulty in moving electrical current through a conductor to which voltage is applied.
iii. a circuit element which dissipates energy in the form of heat .
More appropriate description for a resistor would be the property of a conductor which determines the current produced by a given difference of potential.
This makes us remember that a resistor is a conductor first. And, there is reason to say that superconductive wires dont obey ohm's law. So all conductors are resistive, though not superconductors.
Resistors are used in circuits to regulate the strengths of currents either by reducing the diameter of conductors or introducing more obstacles or lattice imperfections to reduce the strength of current.
The current branches in a parallel network by an elaborate rearrangement of surface charge.
For more details about resistance, how current branches in a parallel circuit and ohm's law consult the following videos, articles and books.
A working definition for current in conductors like metal wires is "the start-stop motion of millions and millions of conduction band electrons everywhere within with a drift superimposed".
The e.m.f of the battery is due to separation of positive from negative charges which produces an e.m.f across its terminals and a pattern of electric field surrounding them, not exactly but like a dipole.
Consider a simple circuit comprising a battery, two wires and a resistor. An electric field is there in the wires and in the resistor; powerful electric field and uniform within the resistor, weak and uniform within the wires. The field is set up by a tiny amount of surface charge with a steep gradient on the resistor and not so steep a gradient on the wires. It is the electric field E created by the surface charges sourced from the battery, which produces a force causing the mobile electrons to acquire a drift velocity v = μE, where 'μ' is the mobility which is a number representing the freedom of movement of the electron in the lattice.
This results in a current density J = σE, where σ is the conductivity of the wire or material of resistor and E is the electric field in the wire if considering wire and is the field in the resistor when considering the resistor.
The p.d. or voltage across the resistor is the integral of a constant powerful field along its length. The p.d. or voltage across the wires is the integral of a constant but weak field along its length.
Voltage is entirely because of the surface charges.
For a live demonstration of surface charge and its effects in circuits visit
ua-cam.com/video/U7RLg-691eQ/v-deo.html
Electrostatics and circuits belong to one science and not two, that of electricity and magnetism. To know how they are unified visit this link
matterandinteractions.org/articles-talks/ and view the article 'A unified treatment of electrostatics and circuits. B. Sherwood and R. Chabay, unpublished. (1999)'
pdf.
For a detailed discussion of surface charge, electric fields, currents, voltage, voltage source, difference between e.m.f. and potential difference, ideal voltage sources, capacitors, inductors, transmission lines, electromagnetic waves, antennas and radiation, see Electric and Magnetic Interactions by Chabay and Sherwood
www.matterandinteractions.org
or
Fundamentals of electric theory and circuits by Sridhar Chitta
www.wileyindia.com/fundamentals-of-electric-theory-and-circuits.html
There is a "look inside" feature in the amazon.com webpage of the book "Fundamentals of electric theory and circuits" by Sridhar Chitta with a few pages of Chapter 1 which may be viewed and also which you may swipe left or press < icon to view the foreword, preface and Table of Contents.
For a lecture by Prof Ruth Chabay on surface charge in a simple dc circuit visit
ua-cam.com/video/-7W294N_Hkk/v-deo.html
Sir ji we study two terms abmitence and impidence in transistor analysing the ration of voltege and current is abmitence and inverse reletion of voltege and current is impidence that means sir there you are showing relation between current and voltage is conductens and impidence is equal sir so that means we can say conductence is impidence
Soory admitence
Thanku
Sir mho hota h ?
Baki video is gr8
Sir conductance and conductivity ka bs hindi bata dijiye. English main samaj aa gya but hindi main confused hu. Please reply me sir.
Phir se samjiea
best
+ashutosh ranjan bharti
Thank you.
thanku sir
sir how conductors have low resistivity?????
Hello Anil Kumar !
Please visit the playlist of semiconductor for class 12.
Nice
Mast h
Hello Vibhanshu vishal !
Thank you for your encouragement and as always ........ thanks for watching.
एक ताम्बे के तार कि लम्बाई को 0•1कि वृध्दी
करने पर इसके पृतिरोध मे कितने पृतिशत परिवरतन होगा । प्लीज
Sir mere ko resistance ka formula 250/230+temperature kaise aaya isko solve krne ki video m batiya
👍👍👍👍👍👍👍
Thanks sir kitna bhi thanks khoo less hai
Sir good per you are not explain it more
resistivity toh samjha dete thoda sir
Naya video dekh lo.
Thanks
Thanks a lot sir
Thanku sir
best
+ashutosh ranjan bharti
Thanks.
Thank you so much sir
best
+Ketan Sahoo
thanks for support.