Target Exam

CUET

Subject

Physics

Chapter

Electric Charges and Fields

Question:

The flux of the electric field $\vec E=2×10^3\hat i N/C$ through a square of 10 cm, on a side whose plane is parallel to the xy plane is:

Options:

$20 Nm^2/C$

$2×10^4 Nm^2/C$

$2×10^5 Nm^2/C$

0

Correct Answer:

0

Explanation:

The correct answer is Option (1) → $20 Nm^2/C$

The electric flux through the square is -

$\phi_E=\vec E.\vec A\cos(θ)$

$\phi_E=2×10^3×0.01×\cos 90°$

$=0 Nm^2/C$