Question

A charge $17.7 \times 10^{-4}\text{ C}$ is distributed uniformly over a large sheet of area $200 \text{ m}^2$. The electric field intensity at a distance $20 \text{ cm}$ from it in air will be $[\epsilon_0 = 8.85 \times 10^{-12}\text{ C}^2/\text{Nm}^2]$}

• A. $5 \times 10^5 \text{ N/C}$
• B. $6 \times 10^5 \text{ N/C}$
• C. $7 \times 10^5 \text{ N/C}$
• D. $8 \times 10^5 \text{ N/C}$

Hint:

For a large (infinite) plane sheet of charge, the electric field intensity $E = \frac{\sigma}{2\epsilon_0}$ is uniform and does not depend on the distance from the sheet. Always check if given information is relevant to the formula used.

Answer 1

The Correct Option is C