Figure shows planar loops of different shapes moving out of or into a region of a magnetic field which is directed normal to the plane of the loop away from the reader. Determine the direction of induced current in each loop using Lenz's law.

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of 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?

A closed loop moves normal to a constant electric field between the plates of capacitor with plane of loop is normal to the field. When the loop is partially outside the plates of capacitor, the induced current in the loop

A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m.f is

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 ? What could be the sense of current in the loop and the direction of magnetic field ?

A square loop of side 10 cm and resistance 0.5Omega is placed vertically in the east-west plane. A uniform magnetic field of 0.10T is set up across the plane in the north-east direction. The magnetic field is decreased to zero' in 0.70 s at a steady rate. Determine the magnitudes of induced emf and current during this time interval.

A rectangular loop of area 0.06 m2 is placed in a magnetic field of 0.3T with its plane (i) normal to the field (ii) inclined 30^(@) to the field (iii) parallel to the field. Find the flux linked with the coil in each case.

A square loop of side 12 cm with its sides parallel to X and velocity of 8 cm s in the positive x-direction in an environment containing a magnetic field in the positive z-direction. The field is neither uniform in space nor constant in time. It has a gradient of 10 T cm along the negative x-direction (that is it increases by 103 T cm- as one moves in the negative x-direction), and it is decreasing in time at the rate of 103 Ts. Determine the direction and magnitude of the induced current in axes is moved with a the loop if its resistance is 4.50 m2. Sol. Given, side of loop a = 12 cm . Area of loop (A) = a = (12) = 144 cm = 144 x 10 m? (. Area of square = (side))

A coil having 500 square loops each of side 10 cm is placed normal to a magnetic field which increases at the rate of 1.0 "tesla"//"second" . The induced e.m.f. in volts is