In the diagram shown, a wire carriers current `I`. The loop has `N` turns and part of helical loop on which arrows are drawn is outside the plane of paper. What is the value of the `oint vecB.vec(dl)` (as in Ampere's law) on the helical loop shown in the figure?

A rectangular loop of wire with dimensions shown in figure is coplanar with a long wier carrying current 'I' . The distance between the wire and the left side of the loop is r . The loop is pulled to the right as indicated. What are the directions of the induced current in the loop and the magnetic forces on the left and right sides of the loop when the loop is pulled ?

A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop . If steady current I is established in the wire as shown in the figure ,

Eight wires cut the page perpendicularly at the points shown. Each wire carries current i. Odd currents are out of the page and even currents into the page. The line integral int vecB. vec dl -along the loop is

A square loop of wire carrying current I is lying in the plane of paper as shown in Fig. 1.141. The magnetic field is present in the region as shown. The loop will tend to rotate

A loop carrying current I lies in the x-y plane as shown in the figure . The unit vector hat k is coming out of the plane of the paper . The magnetic moment of the current loop is

A rectangular loop carrying a current i_(2) situated near a long straight wire carrying a steady current i_(1) . The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then the current loop will

A circular loop of wire is carring a current i (as shown in the figure). On applying a uniform magnetic field inward perpendicular to the plane of the loop, the loop

consider a triangular loop of wire with sides a and b. The loop carries a current I in the direction shown and is placed in a uniform magnetic field that has magnitude B and points in the same direction as the current in side OM of the loop. At the moment shown in the figure the torque on the current loop is tau . Find the value of IabB//tau

An infinitely long current carrying wire and a small current carrying wire and a small current carrying loop are in the plane of thye paper as shown. The ardius of the loop is a and distance of its centre from the wire is d (dgtgta). If the loop applies a force F on the wire then :