Charge on the outer sphere is q and the inner sphere is grounded. The charge on the inner sphere is q ' , for r 2 > r 1 . Then

Question

Charge on the outer sphere is q and the inner sphere is grounded. The charge on the inner sphere is q ' , for r 2 &#62; r 1 . Then

Aicharya · Accepted Answer

Since the inner sphere is grounded, potential of the shell must be zero due to the charges on outer sphere and inner sphere.

$\Rightarrow \frac{k q'}{r_{1}} + \frac{k q}{r_{2}} = 0$

$\Rightarrow \frac{k q'}{r_{1}} = - \frac{k q}{r_{2}}$

$\Rightarrow q' = - \frac{r_{1}}{r_{2}} q$

Charge on the outer sphere is q and the inner sphere is grounded. The charge on the inner sphere is q ' …