An emf of 0. 08 V is induced in a metal rod of length 10 cm held normal to a uniform magnetic field of 0.4 T, when move with a velocity of:
Text Solution
Verified by ExpertsThe correct answer is:
D
The formula to calculate the motional emf induced in a moving conductor in a magnetic field is given by
= Blv ...(i)
Substitute the values of the known parameters into equation (i) and solve to calculate the required velocity of the rod.
= 2ms -1
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