Practicing Success
Practicing Success
CUET Preparation Today
Which of the following gives the correct expression for potential gradient in terms of the resistivity $(\rho)$ of the wire? |
$k=I \rho A^{-1}$ $k=I \rho l A^{-1}$ $k=\frac{I \rho}{lA}$ $k=I A \rho$ |
$k=I \rho A^{-1}$ |
The correct answer is Option (1) → $k=I \rho A^{-1}$ |
