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MCQs for Electrostatic Potential and Capacitance
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MCQs for Electrostatic Potential and Capacitance
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15 Questions

1. Which of the following statements is false for a perfect conductor?
2. In a parallel plate capacitor, the capacity increases if
3. An electric dipole of moment \(\vec{p}\) is placed in a uniform electric field \(\vec{E}\) . Then (i) the torque on the dipole is \(\vec{p} \times \overrightarrow{\mathrm{E}}\) (ii) the potential energy of the system is \(\vec{p} . \overrightarrow{\mathrm{E}}\) (iii) the resultant force on the dipole is zero. Choose the correct option.
4. Dielectric constant for a metal is
5. Two identical capacitors are joined in parallel, charged to a potential V, separated and then connected in series, the positive plate of one is connected to the negative of the other. Which of the following is true?
6. A capacitor has some dielectric between its plates, and the capacitor is connected to a dc source. The battery is now disconnected and then the dielectric is removed, then
7. Two spherical conductors each of capacity C are charged to potential V and -V. These are then connected by means of a fine wire. The loss of energy is
8. Equipotential surfaces
9. A test charge is moved from lower potential point to a higher potential point. The potential energy of test charge will
10. If a conductor has a potential V ≠ 0 and there are no charges anywhere else outside, then
11. Consider a uniform electric field in the z-direction. The potential is a constant
12. A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates
13. In a region of constant potential
14. When air is replaced by a dielectric medium of constant K, the maximum force of attraction between two charges separated by a distance
15. Which of the following statement is true?

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