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A circular conducting ring of radius 'a'...


A circular conducting ring of radius 'a' is rolling with slipping on a horizontal surface as shown. A uniform magnetic field B is existing perpendicular to the plane of motion of the ring. The emf iniduced between the points A and D of the ring is

A

`Bomegaa^(2)`

B

`2Bomegaa^(2)`

C

`4Bomegaa^2`

D

`6Bomegaa^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
The emf induced between the point A and D is
`epsilonvecB.(vecl_(eff)xxvecv)`
`=Basqrt(2)vsin45^(@)`
`=Basqrt(2)(v)/(sqrt(2))=Bva=2Bomegaa^(2)`
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