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A wire length , carrying a current of 2A is bent in the form of a circular are which subtends on angle of 45° at its centre. Then magnetic induction at the centre is
detailed solution
Correct option is B
l=R.θ⇒R=π/2π/4m=2m ∴Bo=μoi2R.θ2π=μo×22×2×π/42πT ⇒Bo=μo16TTalk to our academic expert!
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