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?

Explanation

`(1) 2.4xx10^(-4) V , ` lasting 2s
(2) `0.6xx10^(-4) V, ` lasting 8s