`1A` current flows through an infinitely long straight wire. The magnetic field produced at a point 1 metres away from it is

What current must flow in an infinitely long straight wire to produce a magnetic field of 4xx10^5T at 8cm away from the wire?

Using Bio-Savart law, find out the magnitude of the mangnetic field at an external point due to a current flowing through an infinitely long straight wire. Sketch the field lines in the neighbourhood of the wire.

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.

Current I is flowing through a vertical long wire in the upward direction. The magnetic field at a point on the east of the wire is

5 A current is flowing through a long straight conducting wire. What is the magnitude of magnetic field at a distance 10 cm from the wire ?

A direct current I Flows along the length of an infinitely long straight thin walled pipe then the magnetic field is