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

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

A current of 2 amp. flows in a long, straight wire of radius 2 mm . The intensity of magnetic field on the axis of the wire is

A current of 2 amp. flows in a long, straight wire of radius 2 mm . The intensity of magnetic field on the axis 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 long vertical wire in which a current is flowing produces a neutral point with the earth's magnetic field at a distance of 5 cm from the wire. If the horizontal component of the earth's magnetic induction is 0.18 gauss, then the current in the wire is

What is the current in a straight wire, if a magnetic field of 10^(-6)W//m^(2) is produced at a distance of 2 cm from it ?

A very long wire is held vertical in a direction perpendicular to the horizontal component of Earth's magnetic field. Find the value of current to be passed through this wire so that this resultant magnetic field at a point 10 cm away from this wire becomes zero. What will be the magnetic induction at a point 10 cm away from the wire on the opposite side of this point ? Horizontal component of Earth's magnetic field H=0.36xx10^(-4)T,mu_(0)=4pixx10^(-7)Tm//A .

A long vertical wire in which a current is flowing produces a neutral point with the earth's magnetic field at a distance of 5 cm from the wire. If the horizontal component of the earth's magnetic induction is 0.18 gauss, then of the wire is