A dielectric material with a dielectric constant kappa is inserted between the plates of a parallel plate capacitor. How does the capacitance change?

It increases by a factor of kappa

It decreases by a factor of kappa

It increases by a factor of kappa squared

A conductor is in electrostatic equilibrium. Which of the following is true?

The electric potential is constant throughout the conductor.

The electric field inside the conductor is non-zero.

The net charge is distributed uniformly throughout the volume.

Charges are free to move within the conductor.

IIT JEE Mains — Physics - Test Paper