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The material of wire of potentiometer is...

The material of wire of potentiometer is

A

Copper

B

Steel

C

Manganin

D

Aluminium

Text Solution

Verified by Experts

The correct Answer is:
C
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A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10^(-7) ohm-metre and the current passing through it is 0.1 ampere, cross-section of the wire is 10^(-6)" m"^(2) . The potential gradient along the potentiometer wire is

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ERRORLESS -CURRENT ELECTRICITY-Self Evaluation Test -19
  1. The material of wire of potentiometer is

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  2. Figure 6.51 shows a simple a potentiometer circuit for measuring a sma...

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  3. A car has a fresh storage battery of emf 12 V and internal resistance ...

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  4. If the balance point is obtained at the 35th cm in a metre bridge the ...

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