
A rectangular loop sides 10 cm and 3cm moving out of a region of uniform magnetic filed of 0.5T directed normal to the loop. If we want to move loop with a constant velocity 1 cm/sec. then required mechanical force is (Resistance of loop = ) :-




Important Questions on Electromagnetic Induction
A metallic square wire loop of side 10 cm and resistance is moved with a constant velocity v0 in a uniform magnetic field of induction B = 2 T as shown in the figure. The magnetic field perpendicular to the plane of the loop. The loop is connected to a network of resistors each of value 3 ohm. The resistance of the lead wires OS and PQ are negligible. What should be the speed of the loop so as to have a steady current of 1 mA in it? Give the direction of current in the loop.

Figure shows a square loop of side 5 cm being moved towards right at a constant speed of 1cm/sec. The front edge just enters the 20 cm wide magnetic field at t = 0. Find the induced emf in the loop at t = 2s and t = 10s.

Find the induced EMF about ends of the rod in each case.

Find the induced EMF about ends of the rod in each case.

Find the induced EMF about ends of the rod in each case.
(a)
(b)
(c)

Find the induced EMF about ends of the rod in each case.

Find the induced EMF about ends of the rod in each case.

Find the EMF induced in metal loop when it moves in non-uniform magnetic.
