Physics Moving Charges and Magnetism

For real object match the corresponding entries of column-1 with column-2 (where m is the magnification produced by the mirror) :-

Current I is flowing in infinitely long wire. Which of the following graphs represents the variation of B w.r.t. axial distance r from the axis of wire :-

A long wire carrying current $\sqrt[]{2}$ A is placed in uniform magnetic field of 3 * 10^–5 T. If magnetic field is perpendicular to wire, find the magnetic force on unit length of wire.

Two rings of equal radius R arranged perpendicular to each other with common centre at C, carrying equal current I. Find magnetic field at C.

A proton moving with velocity v along the axis approaches a circular current carrying loop as shown in figure. The magnitude of magnetic force on proton at this instant is

 

A proton and a deuteron enter in a uniform magnetic field with equal kinetic energy in the direction perpendicular to the field. The ratio of radius of circular path is

A proton is revolving in a circular path with constant speed. Angle between angular momentum and magnetic dipole  moment associated with it is

What are different types of electricity?

What are the various types of power supply?

Explain Biot Savart law in Class 12 Physics.