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a vertical ring of radius r and radius R falls vertically
it is in contact with 2 vertical rails which are joined at the top
the rails are without friction and resistance
there is a horizontal uniform magnetic field of magniitude B to the plane of th e rings and rail
when the speed of ring is v the current in section PQ is
Ans 8Brv/R
Please give detailed solutioon rates assured

Hrishant Goswami , 11 Years ago
Grade 10
anser 1 Answers
ROSHAN MUJEEB

Last Activity: 4 Years ago

UpperpartoftherringhasresistanceR/2andlowerparthasresistanceR/2andtheyareconnectedinparallel,thus,effectiveresistance=R/4i=ResistanceEMF​=R/4Bv(2r)​=R8Bvr​

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