Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

Give definition of ampere in electric current.

Why should the spring/suspension wire in a moving coil galvanometer have low torsional constant?

"For any charge configuration, equipotential surface through a point is normal to the electric field." Justify.

Write the condition when terminal voltage and electromotive force of any battery are equal.

What is the relation between drift velocity and relaxation time of free electrons in metals?

How electromagnetic radio waves are produced?

We cannot determine the internal resistance of an accumulator cell by Wheatstone bridge. Why?

Write three factors on which the coefficient of self-induction of any coil depends.

Give a reason to show that microwaves are better carriers of signals for long range transmission than radio waves.

A point charge q is placed in a cavity in a metal block. If a charge Q is brought outside the metal, will the charge q feel an electric force?