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A metal rod of resistance R is fixed along a diameter of a conducting ring of radius r. There is a magnetic field of magnitude B perpendicular to the plane of the loop . The ring spins with an angular velocity ω about its axis. The centre of the ring is joined to its rim by an external wire W. The ring and W have no resistance. The current in W is (a)zero (b)Br 2 ω/2R (c)Br 2 ω/R (d)2Br 2 ω/R

A metal rod of resistance R is fixed along a diameter of a conducting ring of radius r. There is a magnetic field of magnitude B perpendicular to the plane of the loop . The ring spins with an angular velocity ω about its axis. The centre of the ring is joined to its rim by an external wire W. The ring and W have no resistance. The current in W is


(a)zero


(b)Br2ω/2R


(c)Br2ω/R


(d)2Br2ω/R


Grade:12

1 Answers

Nirmal Singh.
askIITians Faculty 44 Points
7 years ago

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Thanks & Regards,
Nirmal Singh
Askiitians faculty

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