Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

The correct interpretation of Ohm's law is: (Here, $\vec{J}$ is current density, '$\sigma$' is conductivity, $\vec{E}$ is electric field and '$\rho$' is resistivity.)

Options:

$\vec{E}=\sigma \vec{J}$

$\vec{E}=\vec{J}_\rho$

$\vec{J}=\rho \vec{E}$

$\vec{J}=\frac{\sigma}{\vec{E}}$

Correct Answer:

$\vec{E}=\vec{J}_\rho$

Explanation:

The correct answer is Option (2) → $\vec{E}=\vec{J}_\rho$