The expression for intrinsic impedance is given by

The susceptibility of a diamagnetic substance is

The current flowing through a lamp with a power rating of 50 W and a voltage rating of 250 V is:

To locate a point with reference to another point is an example of which coordinate system?

An unpolarized beam of intensity I_o is incident on a pair of Nicol prisms making an angle of 60 degrees with each other.

The intensity of light emerging from the pair is

Following type of motor is used where high starting torque and wide speed range control is required?

Which of the following represents the unit vector that extends from the origin to the point with coordinates (2, -2, 1)?

The principle where a static conductor and a varying magnetic field induces an electromotive force (emf) is called:

A positively charged particle moving due east enters a region of uniform magnetic field directed vertically upwards. This particle will:

When a copper disc is rotated rapidly below a freely suspended magnetic needle, the magnetic needle starts rotating with a velocity: