Question

Figure shows the potential due to similarly charged infinite sheets with charge per unit are `sigma_2 and sigma_1`. From examining third plot we can deduce that

A. `sigma_2gtsigma_1`
B. `sigma_2 ltsigma_1`
C. `sigma_2=sigma_1`
D. none of these

Answer 1

Correct Answer - A
Negative of slope of potential versus `x` curve gives electric field. In this case, slope is negative, therefore electric field is positive. Thus field due to `sigma_(2)` is greater, i.e., `sigma_(2)=sigma_(1)`.