Assertion (A): | \(0\) V. | The potential at the centre cannot be
Reason (R): | Potential in the interior of a sphere must always be greater than the potential on the surface. |
1. | (A) is true but (R) is false. |
2. | (A) is false but (R) is true. |
3. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
4. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
A thin conducting spherical shell of radius \(R\) has a charge \(Q\) which is uniformly distributed on its surface. The correct plot for electrostatic potential due to this spherical shell is:
1. | 2. | ||
3. | 4. |
A positive charge q and a negative charge -q are placed at x= -a and x= +a respectively. The variation of V along x-axis is represented by the graph:
1. | 2. | ||
3. | 4. |