In physics, a potentiometer and a length of constantan wire are not exactly equivalent, although they are related. A potentiometer is a type of variable resistor that uses a rotating shaft or sliding contact to vary the resistance. It is commonly used to measure the potential difference (voltage) across a circuit. Constantan wire, on the other hand, is a type of resistance wire made from a copper-nickel alloy. It has a high resistivity and is often used in resistance coils, thermocouples, and potentiometers. In a potentiometer, a length of constantan wire is often used as the resistive element, but the potentiometer itself is more than just a length of wire. It includes the mechanical mechanism for varying the resistance, such as the rotating shaft or sliding contact, as well as the terminals and housing. So while a length of constantan wire is a key component of a potentiometer, they are not equivalent in the sense that a potentiometer is a complete device that uses the wire to measure voltage, whereas the wire is just a component.
Pls why is the voltage increasing as the length is increasing what is the theory behind that Because i thaught there will be potential drop as the length increases
Can someone use metre bridge instead of constantan wire and metre rule
In physics, a potentiometer and a length of constantan wire are not exactly equivalent, although they are related.
A potentiometer is a type of variable resistor that uses a rotating shaft or sliding contact to vary the resistance. It is commonly used to measure the potential difference (voltage) across a circuit.
Constantan wire, on the other hand, is a type of resistance wire made from a copper-nickel alloy. It has a high resistivity and is often used in resistance coils, thermocouples, and potentiometers.
In a potentiometer, a length of constantan wire is often used as the resistive element, but the potentiometer itself is more than just a length of wire. It includes the mechanical mechanism for varying the resistance, such as the rotating shaft or sliding contact, as well as the terminals and housing.
So while a length of constantan wire is a key component of a potentiometer, they are not equivalent in the sense that a potentiometer is a complete device that uses the wire to measure voltage, whereas the wire is just a component.
I feel one can use..since it's just same constantan of 100cm
No , use the potentiometer not the meter bridge
Metre bridge was not in the requirements in the yellow paper
Pls sir can you show us how it was connected from the beginning.
Pls why is the voltage increasing as the length is increasing what is the theory behind that
Because i thaught there will be potential drop as the length increases
Length is proportional to resistance and increase in length increases pd across the ends (ohm's law)
Thank you ♥️
Thank you sir
Why not
Sir I can't see it please
Sir please guide us neco computer pratical 🙏
Will try to get the instruction
Can a potentiometer be used instead
Yes