ICSE ICSE Class 8 - CISCE Question Bank Solutions for Physics

What are the two kinds of charges?

A glass rod is rubbed with silk. State the kind of charge acquired by each.

An ebonite rod is rubbed with fur. State the kind of-charge acquired by each.

Describe an experiment to demonstrate that there are two r kinds of charges.

How will you show that like charges repel and unlike charges attract each other?

A glass rod rubbed with silk is suspended near an ebonite r rod rubbed with fur. What will be your observation? Give a reason to your answer.

An ebonite rod rubbed with fur is suspended near another ebonite rod rubbed with fur. State your observation and give a reason to support your answer.

What do you mean by conservation of charges?

An ebonite rod is rubbed with fur. Compare the charges acquired by them.

Name three constituents of an atom and state the kind of charge on each of them.

What is the net charge on an atom?

Briefly describe the structure of an atom.

What are free electrons?

What causes the charging of two objects when they are rubbed together?

In each of the following cases, State which body loses electrons:
(a) A glass rod when rubbed with silk.
(b) An ebonite rod when rubbed with fur.

A glass rod is rubbed with silk. Explain the charging of the glass rod and the silk on the basis of electron movement.

An ebonite rod is rubbed with fur. Explain the charging of the ebonite rod and the fur on the basis of electron movement.

Distinguish between conductors and insulators of electricity.

Give one example each of a conductor and an insulator of electricity.

State two ways of charging a conductor.