. A rectangular wire loop of sides 8cm 2cm and
with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3T directed normal to the loop.
What is the emf developed across the cut if the velocity of the loop is 1cms-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) The induced voltage for longer side is 2.4 × 10-4 V for 8s.
(b) The induced voltage for shorter side is 0.4 × 10-4 V for 2s.