Question

A cube of side 5 cm is placed in a uniform field \( E \), where \( E = 5 \times 10^4 \, \text{N/C} \). The flux through the cube is:

• A. zero
• B. \( 1.25 \times 10^3 \, \text{N.m}^2 \)
• C. \( 10^3 \, \text{N.m}^2 \)
• D. None of the above

Hint:

Flux through a closed surface is zero in a uniform electric field with no enclosed charge.

Answer 1

The Correct Option is A

Step 1: Flux through a cube.
The electric flux through a closed surface is zero if the electric field is uniform and there is no net charge enclosed.
Step 2: Explanation.
Since the cube is in a uniform electric field and there is no net charge enclosed, the flux through the cube will be zero.
Final Answer: \[ \boxed{\text{Zero}} \]