Moving Charges and Magnetism — Physics STD 12 Science — Question

A circular loop of radius 4.0cm is placed in a horizontal plane and carries an electric current of 5.0A in the clockwise direction as seen from above. Find the magnetic field:

1. At a point 3.0cm above the centre of the loop.
2. At a point 3.0cm below the centre of the loop.

On what does the value of the angle of deviation for a given prism depend?

Under what condition is terminal voltage at the ends of a secondary cell is equal to its electromotive force?

What is the resultant force on an electric dipole placed in a uniform electric field?

Answer carefully:
We know that electric field is discontinuous across the surface of a charged conductor. Is electric potential also discontinuous there?

Define intensity of magnetisation.

Name the electromagnetic radiations used for viewing objects through haze and fog.

With what Hertz produced electro-magnetic waves?

How does the junction plane behave in the case of reverse bias?

Name two factors by which voltage sensitivity of a galvanometer can be increased.