Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

The resistivity of a potentiometer wire is $10^{-7} \Omega m$ and its cross-section area is $10^{-6} m^2$. When a current of 0.1 A flows through the wire, its potential gradient is:

Options:

$10^{-1} V/m$

$10^{-2} V/m$

$10^{-4} V/m$

$10 V/m$

Correct Answer:

$10^{-2} V/m$

Explanation:

The correct answer is Option (2) → $10^{-2} V/m$