Dear Student, time taken to to cover the distance lt=l2vinduced EMF E=∆φt=B2ld2l2v=2Bdvoptio D Regards

ans d

ans d ends at the conductor A) 5pv• D) SO mv One conducting u tube can slide inside another as shown in figure, maintaining electrical contacts between the tubes. The magnetic field B is perpendicular to the plane of the figure. II each tube moves towards the other at a constant speed v, then the emf induced in the circui! in terms of B, and v, where is the width of each tube, will be : A)B€v C) zero D) 2BCv

Dear Student,

t i m e t a k e n t o t o c o v e r t h e d i s \tan c e l t = \frac{l}{2 v} i n d u c e d E M F E = \frac{∆ φ}{t} = \frac{B (\frac{2 l d}{2})}{\frac{l}{2 v}} = 2 B d v o p t i o D R e g a r d s