A right angled triangle abc, made from a metallic wire, moves at a uniform speed v in its plane as shown in . A uniform magnetic field B exists in the perpendicular direction. Find the emf induced (a) in the loop abc, (b) in the segment bc, (c ) in the segment or and (d) in the segment ab.

Explanation

(a) Zero as the comonents of ab are exactly oppsite to that of bc.They cancel each other, because velocity should be perpendicular to the length.
`(b) e=D theta xx l=Dv(bc)+ve at C.`
`(c ) e=0 as velocity is not perpendicular to the length positive at 'a'.`
`(d) e=Bv(bc)`
`i.e. the component of 'ab' along the direction .`