Charge on the outer sphere is q and the inner | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Since the inner sphere is grounded,its potential must be zero due to the charges on both the outer sphere and the inner sphere.Let $r_1$ be the ra

Vedclass · Accepted Answer

$q' = - ( \frac{r_1}{r_2} ) q$

Vedclass · Answer

(D) Since the inner sphere is grounded,its potential must be zero due to the charges on both the outer sphere and the inner sphere.Let $r_1$ be the radius of the inner sphere and $r_2$ be the radius of the outer sphere.The potential $V$ at the surface of the inner sphere is the sum of the potentials due to its own charge $q'$ and the charge $q$ on the outer sphere.$V = \frac{k q'}{r_1} + \frac{k q}{r_2} = 0$Where $k = \frac{1}{4 \pi \epsilon_0}$.Rearranging the equation:$\frac{k q'}{r_1} = -\frac{k q}{r_2}$$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 $q'$,for $(r_2 > r_1)$. Then

Similar Questions

What is earthing or grounding in household electrical circuits?

For a spherical shell,which of the following statements is correct?

Explain electrostatic shielding with a necessary diagram.

$A$ charged spherical conductor of radius $R$ is connected momentarily to another uncharged spherical conductor of radius $r$ by means of a thin conducting wire. Then,the ratio of the surface charge density of the first to the second conductor is:

$A$ metallic rod is placed in a uniform electric field. Select the correct option.

Vedclass Test Series

Exam Paper Generator

Online Exam Module