In fig, what is the magnetic field induction at point O
(a) μ₀i/4πr
(b) μ₀i/4r + μ₀i/2πr
(c) μ₀i/4r + μ₀i/4πr
(d) μ₀i/4r - μ₀i/4πr
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Answer:
the answwr is hum sure about it is b
Explanation:
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