Question

Magnetic calculations for conductors of different configuration

Answer 1

Answer:

Magnetic Field around a Circular Wire :

If we take example of circular wire then we know that current flows both in and out of the circle.

Magnetic field around a circular wire is given by :

B = 2 * π * k . i/r

Magnetic Field around a Solenoid :

A solenoid behaves like a bar magnet and magnetic field is :

B = 4 * π * k * iN/l

Magnetic Field around a Wire :

Magnetic field around a wire is given by :

B = 2 * k . i/d