On what factors does the electrostatic force between two charges depend?

What are electric lines of force?

Define electric field.

Define electric current and give its unit.

A bird sitting on a high power electric line is still safe. How?

Two resistors 12\(\Omega\) and 6\(\Omega\) are first connected in series and then in parallel. The current-voltage graph for the two connections will be represented by which lines in the graph?

Does a solar cell always maintain the potential across its terminals constant? Discuss.

What is the effective resistance across the terminals a and b of the arrangement of resistors?

Can electroplating be possible with alternating current?

Rubbing a comb on hair makes the comb get – 0.4C.
(a) Find which material has lost electron and which one gained it.
(b) Find how many electrons are transferred in this process.