Equal currents i, i are flowing through two infinitely long parallel wires. What will be the magnetic field at a point midway, when the currents are flowing in the same direction.

What is the magnetic field at a point 80 mm from a wire carrying current of 6A?

A current of IA, flows along an infinitely long Staight thin walled tube. The magnetic induction at any point inside the tube is

Equal currents are passing through two very long and straight parallel wires in the same direction. They will _________

The magnetic field produced around a straight line wire when current flows through it is

If a long hollow copper pipe carriers a direct current, the magnetic field associated with the current will be:

An electric current I is flowing through an infinitely long conductor bent into the from as shown in the figure. Find the magnitude and direction of magnetic field at the centre of the semi-circular part of the conductor.

A long straight wire carries a current of 35 A. What is the magnitude of the field (B) at a point 20 cm from the wire?

If the current flowing through a straight conductor is increased, the intensity of the magnetic field _________.

Find the value of magnetic field produced by a current flowing through a semi circular arc of wire.

Derive an expression for the magnetic field produced by a current flowing through a circular arc of the wire.