Six long parallel current carrying wires are perpendicular to the plane of the fig. They pass through the vertices of a regular hexagon of side length a. All wires have same current I. Direction of current is out of the plane of the figure in all the wires except the one passing through vertex F, which has current directed into the plane of the figure. Calculate the magnetic induction field at the centre of the hexagon. Also tell the direction of the field.

A current carrying wire (current = i) perpendicular to the plane of the paper produced a magnetic field, as shown in the figure. A square of side a is drawn with one of its vertices on the wire. The integral ointvecB.dvecr along PQR has the value

A mettalic wire is bent into a square of each side a. If a current I is passed through the wire, what is the magnetic field at the centre of the square?

Two infinitely long straight parallel wire are 5 m apart, perpendicular to the plane of paper. One of the wires, as it passes perpendicular to the plane of paper, intersects it at A and carries current I in the downward direction. The other wire intersects the plane of paper at point B and carries current k int the outward direction O in the plane of paper as shown in Fig. With x and y axis shown, magnetic induction at O in the component form can be expressed as

Two infinitely long straight parallel wire are 5 m apart, perpendicular to the plane of paper. One of the wires, as it passes perpendicular to the plane of paper, intersects it at A and carries current I in the downward direction. The other wire intersects the plane of paper at point B and carries current k int the outward direction O in the plane of paper as shown in Fig. With x and y axis shown, magnetic induction at O in the component form can be expressed as

An infinite current carrying wire passes through point O and in perpendicular to the plane containing a current carrying loop ABCD as shown in the Choose the corrent option .

A long copper wire carries a current of 10 ampere . Calculate the magnetic flux per metre of the wire for a plane surface S inside the wire as shown in the figure.

A long copper wire carries a current of 10 ampere . Calculate the magnetic flux per metre of the wire for a plane surface S inside the wire as shown in the figure.