Statement I: | At any point inside the sphere, electric intensity is zero. |
Statement II: | At any point inside the sphere, the electrostatic potential is \(100~\text{V}\). |
Which of the following is a correct statement?
1. | Statement I is True but Statement II is False. |
2. | Both Statement I and Statement II are False. |
3. | Statement I is True, Statement II is also True and Statement I is the cause of Statement II. |
4. | Statement I is True, Statement II is also True but the statements are independent. |
A thin, metallic spherical shell contains a charge \(\mathrm{Q}\) on it. A point charge \(\mathrm{q}\) is placed at the centre of the shell and another charge \(\mathrm{q}_1\) is placed outside as it is shown in the figure. All the three charges are positive. The force on the charge at the centre is:
1. towards left
2. towards right
3. upward
4. zero
Statement I: | Electric potential is constant within and at the surface of each conductor. |
Statement II: | Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point. |
1. | Both Statement I and Statement II are correct. |
2. | Both Statement I and Statement II are incorrect. |
3. | Statement I is correct but Statement II is incorrect. |
4. | Statement I is incorrect but Statement II is correct. |
If a conductor has a potential \(V\neq 0\) and there are no charges anywhere else outside, then:
(a) | there must be charges on the surface or inside itself |
(b) | there cannot be any charge in the body of the conductor |
(c) | there must be charges only on the surface |
(d) | there must be charges inside the surface |
Choose the correct option:
1. (a), (d)
2. (a), (b), (c)
3. (a), (b)
4. (a), (b), (c), (d)
Some charge is being given to a conductor. Then it's potential:
1. | is maximum at the surface. |
2. | is maximum at the centre. |
3. | remains the same throughout the conductor. |
4. | is maximum somewhere between the surface and the centre. |