class 12 physics 3 marks questions

class 12 physics 3 marks questions for final exam
#class12 #physics

[@Albert_Einstien]

1. Define drift velocity &derive the expression for it.
2. Degine kirchoffs law & derive principle of wheatstone bridge.
3. What is the principle of potentiometer,explain its applications.
4.Using Ampere cicuital law, Derive the expression for magnetic field on infinitly long current carring wire at a ponit at a distance.
5.Conversion of galvanometer into ammeter & conversion of galvanometer into voltmeter.
6.Explain the possible cause of earth magnetic field and define its elements of earth's magnetic field at a place &represent them with a suitable diagram.
7.declination angle & inclination angle.
8.horizontal components of earth's magnetic field.
9.Explain the atom behaves as magnetic dipole ,find expression for magnetic dipole moment of revolving electron.
10.state and explain ampere circuital law and find magnetic field in density at a point well with in a solenoud current carrying.
11. Using brewster law derive an expression for magnetic field due to a circular current carrying loop at any point on its axis.
12.What is cyclotron with diagram explain construction working and theory .
13.what are eddy currents .
14.Derive an expression for average power in circuit
15.define rms values of an AC
16.define principle ,construction, workingnd loses of a transformer.
17.state bohr's model of an atom and derive an expression for radius of an electron .
18.Draw and explain energy level diagram of hydrogen atom showing spectrum series .
19.define binding energy per nucleon .
20.draw and explain curve for binding energy of an nucleon nd mass no.
21.what are nuclear forces ,explain their properties.
23. What is radioactivity.
24.explain band theoryof solids .
25. What is rectifier ( full/half)
26. Difference b/w insulator,metals and semiconductors on the basis of band theory.
27. What is zener diode how it acts as a voltage stabilizer.
Hope it will be helpful for uh ❤

[@Hindikahani65261]

Tnx

[@SimranKaur-wq8tw]

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[@Albert_Einstien]

Wlcm💫

[@sarbjeetwarwal5728]

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[@namandeep8626]

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[@SimranKaur-wq8tw]

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[@salonimehta9577]

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[@Ranvir_gaming-v3r]

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[@nitasha5751]

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[@harshitamahajan-ye2hg]

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[@ParamjitKaur-cb1yk]

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[@sumitbhardwaj3349]

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Respected SANDEEP SIR g♥️♥️

[@taniakajal292]

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[@neeru_05]

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[@AbhishekKumar-pb9iv]

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[@GAYATRISHARMA-jii]

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[@palak7672]

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[@GAYATRISHARMA-jii]

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[@modifiedtractorfans2130]

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[@palak7672]

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[@GAYATRISHARMA-jii]

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[@jasleenrattan]

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[@amrindersingh3032]

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[@meenuthakur5994]

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[@vijaysharmamathlectures]

see telegram channel

[@meenuthakur5994]

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[@Kiran_maan]

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[@Kamal13920]

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[@meenuthakur5994]

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[@ShivKumar-hf6df]

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[@gurleenkaur611]

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[@Jagriti0212]

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[@kamalmaan6896]

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[@VishalKumar-lw2jv]

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[@kamalmaan6896]

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[@palak7672]

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[@GAYATRISHARMA-jii]

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