Questions
A thin circular ring of area A is perpendicular to uniform magnetic field of induction B. A small cut is made in the ring and a galvanometer is connected across the ends such that the total resistance of circuit is R. When the ring is suddenly squeezed to zero area, the charge flowing
through galvanometer is
detailed solution
Correct option is B
Q=NΔϕR=φ1-φ2R=BA−0R=BARTalk to our academic expert!
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A circular ring, made of copper wire, has area of 30 cm2 and resistance of 10 . It is placed in a uniform magnetic field of induction 2 tesla with its plane perpendicular to the field. When the loop is rotated through an angle of about its diameter, coulomb of charge flows through it. Then is
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