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Q.

In hydrogen atom, the electron makes 6.6 ×1015 revolutions per second around the nucleus in an orbit of radius 0. 5 ×10-10 m. It is equivalent to a current nearly

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a

1 mA

b

1 A

c

1.6 × 10-19 A

d

1 μA

answer is B.

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Detailed Solution

Charge, q = it ∵ i=qt=qf  ⇒i=1.6×10-19×6.6×1015≈ 1 mA

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