First slide
Motional EMF
Question

A square frame ABCD of side o and a long current carrying conductor PQ arc arranged as shown in fig.(7). If the frame moves towards right with a

velocity ‘v’, the resultant induced e.m.f. in the loop will be

Difficult
Solution

The induced e.m.f. in AD is given by
eAD=μ0i2πxav Similarly, eBC=μ0i2π(x+a)av
 Resultant e.m.f. = eAD -eBC
 or e=μ0 i a V2π1x1x+a=μ0ia2v2πx(x+a)

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App