RE-NEET 2024 Physics Charge Distribution MCQ Question with Solution

A metal cube of side 5 cm is charged with 6 µC. The surface charge density on the cube is

A

0.125 × 10⁻³ C m⁻²

B

0.25 × 10⁻³ C m⁻²

C

4 × 10⁻³ C m⁻²

D

0.4 × 10⁻³ C m⁻²

Correct Answer

Option C

Detailed Explanation

The surface charge density $\sigma$ is given by $\sigma = \frac{Q}{A}$ , where $Q = 6 \times 10^{-6}$ C and $A = 6 \times (0.05)^2$ m². Calculating gives $\sigma = 4 \times 10^{-3}$ C m⁻².

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RE-NEET 2024 Physics Charge Distribution MCQ Question

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