A current i ampere flows in a circular arc of wire whose radius is R, which subtend an angle 3π/2 radian at its centre. The magnetic induction B at the centre is

Question:

Options :

(a) μ0ί/R
(b) μ0ί/2R
(c) 2μ0ί/R
(d) 3μ0ί/8R

Answer :

^{(d) 3μ}₀^ί/8R

Answer Steps :

step 1:

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