Q.
A conducting ring of radius r and resistance R rolls on a horizontal surface with constant velocity v. The magnetic field B is uniform and is normal to the plane of the loop. Choose the correct option.
see full answer
Start JEE / NEET / Foundation preparation at rupees 99/day !!
21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya
a
The induced emf between O and Q is Brv.
b
An induced current I=2 BvrRflows in the clockwise R direction.
c
An induced current I=2 BvrR flows in the anticlockwise R direction.
d
No current flows.
answer is D.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
Induced emf between O and Q is12Bω2r2=Bω2r2=2BvrBut net induced emf in the ring will be zero. Hence no current flows in the ring.
Watch 3-min video & get full concept clarity