Charges & Magne...

A device which converts electrical energy into mechanical energy is called:​

A conductor of length l, carrying current I and placed in a magnetic field B experiences a force F given by

A wire 40 cm long carries a current of 20 A. It is bent into a loop and placed with its plane perpendicular to a magnetic field having a flux density of 0.52 T. What is the torque on the loop if it is bent into a square.​

A charge moves through a magnetic field with a certain velocity. Direction of force can be obtained by applying :

A plane square loop PQRS of side ‘a’ made of thin copper wire has ‘n’ turns and it carries a direct current ‘I’ ampere in the direction shown in the adjoining figure. This wire loop is placed in a magnetic field of flux density ‘B’ tesla, which is directed perpendicularly in to the plane of the loop. What is the torque acting on the loop?

Torque on a current loop is by= n(x). With ishere?

A wire of length l, carrying current is bent into a loop and placed with its plane perpendicular to a magnetic field. In which of the following shapes, is the torque acting on the loop maximum?

A coil in shape of an equilateral triangle if side ‘|’ is suspended between the pole pieces of a permanent magnet such that the magnetic field B is in the plane of the coil. If due to a current I in the triangle, a torque Syntax error from line 1 column 49 to line 1 column 73. Unexpected ‘mathsize’. acts on it, the side of the triangle is:

A charge of +10µ coulomb enters a uniform magnetic field parallel to its direction. What will happen to the charge?​