Question

Define resistance of a conductor. State the factors on which resistance of a conductor depends. Name the device which is often used to change the resistance without changing the voltage source in an electric circuit. ​

Answer 1

Answer:

Potentiometer

The resistance of a conductor depends on the cross sectional area of the conductor, the length of the conductor, and its resistivity. Potentiometer are used often to change the resistance without changing the voltage source in an electric circuit.

Answer 2

Answer:

Potentiometer is the ans...

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Explanation:

The resistance of a conductor depends on the cross sectional area of the conductor, the length of the conductor, and its resistivity. Potentiometer are used often to change the resistance without changing the voltage source in an electric circuit.