Two long wires carrying same currents in opposite directions are placed at separation D as shown.Predict variation of magnetic field as one moves from the point O and A

Two long straight wires, each carrying a current I in opposite directions are separated by a distance R . The magnetic induction at a point mid way between the wire is

The two long, straight wires carrying electric currents in opposite directions. The separation between the wires is 5.0 cm. Find the magnetic field at a point P midway between the wires.

Two long parallel wires carry currents in opposite direction as shown. Points A and D lie in the same plane as the wires. The magnetic field at A and D is into the plane of the paper, with intensity B_(A) and B_(D) respectively. If (B_(A))/(B_(D))=7/5 , the value of (I_(1))/(I_(2)) is ____________________.

Four long wires each carrying current I as shown in Fig. are placed at points A, B, C and D. Find the magnitude and direction of magnetic field at the centre of the square.

Two long parallel wires are at a distance 2d apart. They carry steady equal currents flowing out of the plane of the paper , as shown. The variation of the magnetic field B along the line XX is given by

Two long parallel wires are at a distance 2d apart. They carry steady equal currents flowing out of the plane of the paper , as shown. The variation of the magnetic field B along the line XX is given by

Four long wires each carrying current I as shown in the are placed at the points A,B,C and D Find the magnitude and direction of (i) magnetic field the centre of the square (ii) force per metre acting on wire at point D .

Figure. Shows two long wires carrying equal currents I_1 and I_2 flowing in opposite directions. Which of the arrows labeled A to D correctely represents the direction of the magnetic field due to the wires at a point located at an equal distance d from each wire?

A part of a long wire carrying a current i is bent into a circle of radius r as shown in figure. The net magnetic field at the centre O of the circular loop is :

A part of a long wire carrying a current i is bent into a circle of radius r as shown in figure. The net magnetic field at the centre O of the circular loop is