Questions
A square loop of side a is placed such that its plane is the same as that of a very long straight wire carrying a current I. The centre O of the loop is at a distance x from the wire. The loop is given a velocity v as shown. If x >> a, the magnitude of the emf induced in the loop is proportional to
detailed solution
Correct option is D
B=μ0I2πxϕ=μ0I2πxa2e=−dϕdt=-μ0Ia22π−1x2dxdt=μ0Ia22πv1x2eα1x2Similar Questions
A loop, having area 20cm2, is made of thin copper wire. If is placed in a uniform magnetic field of induction 1.5 Tesla with its plane perpendicular to the field. If area of the loop increases to 30 cm2 in 0.5 second, average emf induced in the loop is
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