(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Physics

A coil has a self-inductance of 0·05 Henry. Find the magnitude of the emf induced in it when the current flowing through it is changing at the rate of 100 As^-1.

What is an electromagnet?

Write five forms of energy.

What do you understand by mechanical energy?

What do you understand by the potential energy of the body?

What do you understand by the kinetic energy of the body?

Give three examples of bodies possessing kinetic energy.

How is kinetic energy possessed by a moving body measured?

Is it possible that a body may possess energy even when it is not in motion?

What kind of energy is possessed in a situation when?

A cocked up spring of air gun.

What kind of energy is possessed in a situation when?

A stone lying on the top of roof.

What kind of energy is possessed in a situation when?

A fish moving in the water.

What kind of energy is possessed in a situation when?

A horse running along a level road

What kind of energy is possessed in a situation when?

Water stored in dams.

What kind of energy is possessed in a situation when?

An electron spinning around the nucleus.

What kind of energy is possessed in a situation when?

A shooting arrow.

What kind of energy is possessed in a situation when?

A stone, in a stretched catapult.

Obtain an expression for the potential energy of a body of mass m at a height h above the ground.

What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?

Write the type of energy possessed in the following case:

A bent bow