A portion of a conductive wire is bent in the form of a
semicircle of radius r as shown below in fig. At the centre of
semicircle, the magnetic induction will be
(a) zero (b) infinite
(c) μ₀/4 π . π i/r gauss
(d) μ₀/4 π . π1/r tesla
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Answer is a im sure
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I'm really sure
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