Is it possible for a current loop to stay without rotating in a uniform magnetic field? If yes, what should be the orientation of the loop?

Write formula for current carrying wire placed in uniform magnetic field.

(a) A current-carrying circular loop lies on a smooth horizontal plane. Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e., turns about the vertical axis). (b) A current-carrying circular loop is located in a uniform external magnetic field. If the loop is free to turn, what is its orientation of stable equilibrium? Show that in this orientation, the flux of the total field (external field + field produced by the loop) is maximum. (c) A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?

A circular current loop of magnetic moment M is in an arbitrary orientation in an external magnetic field vecB . The work done to rotate the loop by 30^(@) about an axis perpendicular to its plane is

A small circular flexible loop of wire of radius r carries a current I. It is placed in a uniform magnetic field B. The tension in the loop will be doubled if ______ .

A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon ______ .

A circular loop enters a uniform magnetic field as shown in the figure. The current induced in the coil ____

Show magnetic field lines due to current carrying loop.

A conducting circular loop is placed in a uniform magnetic field of 0.04 T with its plane perpendicular to the field. Some how, the radius of the loop starts shrinking at a constant rate of 2 mm/s. Find the induced emf in the loop at an instant when the radius becomes 2 cm solution.

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is 1 "cm s"^(-1) in a direction normal to the (a) longer side, (b) shorter side of the loop ? For how long does the induced voltage last in each case ?