In a hydrogen atom, an electron moves in a circular orbit of radius 5.2 × 10−11 m and produces a magnetic induction of 12.56 T at its nucleus. The current produced by the motion of the electron will be Given μ0 = 4π × 10−7 Wb/A−m

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6.53 × 103 A

13.25 × 10−10 A

9.6 × 106 A

1.04 × 10−3 A

answer is D.

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Detailed Solution

B = μ04π . 2πir ⇒ 12.56 = 10−7 × 2π × i5.2 × 10−11⇒ i=1.04 × 10−3 A