(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

Name the scientist who first observed the electrical properties of amber.

Name the scientist who first assigned algebraic signs to charges.

What will happen when a glass rod is rubbed with some silk cloth?

What type of charge is produced on an ebonite rod when it is rubbed with a cat's fur?

What is the quantization of charge?

Name a physical quantity, other than an electric charge, which is quantized.

How many electrons are present in one coulomb?

Which is bigger: 1 C or magnitude of the charge on an electron?

Is a charge of -3.6 X 10^-18C possible?

What is the origin of frictional forces?

What is the cause of charging?

Who first showed two kinds of charges and who gave them algebraic signs?

State two differences between charge and mass.

Is the mass of the body affected by charging?

Consider three charged bodies A, B, and C. If A and B repel each other and A attracts C, what is the nature of force between B and C?

Name any two basic properties of electric charge.