Two long straight parallel wieres are 2m apart, perpendicular to the plane of the paper. The wire A carries a current of 9.6 A, directed into the plane of the paper. The wire B carries a current such that the magnetic field of induction at the point P, at a distance of 10/11 m from the wire B, is zero. find the magnitude and directiion of the current in B.

Two long straight parallel wieres are 2m apart, perpendicular to the plane of the paper. The wire A carries a current of 9.6 A, directed into the plane of the paper. The wire B carries a current such that the magnetic field of induction at the point P, at a distance of 10/11 m from the wire B, is zero. find the magnitude of the magnetic field of induction of the pont S.

Two long parallel wire P and W are both perpendicular to the plane of the paper with distance of 5 m between them . If P and W carry current of 2.5 A and 5A respectively in the same direction, then the magnetic field at a point half-way between the wires is

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?

A straight wire carries a current of 3 A.Calculate the magnitude of the magnetic field at a point 15cm away from the wire. Draw a diagram to show tha direction of the magnetic field.

A uniform but time-varying magnetic field B(t) exists with in a circular region of radius a and is directed in to the plane of the paper as shown in the figure. The magnitude of the induced electric field at the point P at a distance r from the centre of the circular region

A current of 10A is flowing east to west in a long wire kept in the east-west direction. Find magnetic field in a horizontal plane at a distance of 20cm south from the wire