The figure shows the top view of a conducting rod AB bent to form a semicircle of radius R, carrying current I, placed on a smooth horizontal table. It is subjected to uniform magnetic field B perpendicular to its plane as shown. The rod is held at rest in it position by two light strings attached to its ends. Calculate the tension in the strings.

The figure shows top view of a conducting rob AB, bent to form a semicircle of radius R, carrying current I, placed on a smooth horizontal table. It is subjected to a uniform magnetic field B perpendicular to its plane as shown. The rod is held at rest in its position by two light strings attached to its ends. Calculate the magnetic force acting on the conductor AB and the tension in the strings. Strategy: To find the force conductor, consider a small arc of length dl = Rd theta . This arc can be consider as a straight conductor of length dl.

A conducting ring of radius 2R rolls on a smooth horizontal conducting surface as shown in figure-5.295. A uniform horizontal magnetic field B is perpendicular to the plane of the ring. The potential of A with respect to O is:

A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field B such that B is perpendicular to the plane of loop. What is the magnetic force acting on the loop?

A conducting circular loop of radius r carries a constant current i.It is placed in a uniform magnetic field B such that B is perpendicular to the plane of the loop. The magnetic force acting on the loop is

A conducting wire bent in the form of a parabola y^2=2x , carries a current I=2A as shown in figure. The wire is subjected to a uniform magnetic field vecB=-2hatk tesla. The magnetic force on the wire in (newton) is

A conducting circular loop of radiius r carries a constant current i . It is placed in a uniform magnetic field vec(B)_(0) such that vec(B)_(0) is perpendicular to the plane of the loop . The magnetic force acting on the loop is

A conducting rod AB is bent in the form of a semicircle of radius R. It is kept in a region of uniform magnetic field B such that plane of semicircle is perpendicular to magnetic field. This rod is being moved with a constant speed v perpendicular to AB. Find the emf developed between the ends.