If specific resistance of a potentiometer wire is 10⁻⁷Ωm and current flow through it is 0.1 Å, cross-sectional area of wire is 10⁻⁶ m² then potential gradient will be :-
A
10⁻² V/m
B
10⁻⁴ V/m
C
10⁻⁶ V/m
D
10⁻⁸ V/m

Question

If specific resistance of a potentiometer wire is 10⁻⁷Ωm and current flow through it is 0.1 Å, cross-sectional area of wire is 10⁻⁶ m² then potential gradient will be :-

Accepted Answer

10⁻² V/m

Answer

10⁻⁴ V/m

Answer

10⁻⁶ V/m

Answer

10⁻⁸ V/m

AIPMT PRELIMS 2001 Physics Potentiometer MCQ Question

Correct Answer

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