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STANDARDPhysics-Current Electricity

STANDARD Physics Atomic Structure and Current MCQ Question

Type: MCQ-numerical-Medium-Class 12

In an atom electrons revolves around the nucleus along a path of radius 0.72 Å making 9.4 × 10¹⁸ revolution per second. The equivalent current is (e = 1.6 × 10⁻¹⁹)

A

1.2 A

B

1.5 A

C

1.4 A

D

1.8 A

Correct Answer

Option B

Detailed Explanation

The equivalent current I is given by I = e × v, where v is the frequency of revolution. Substituting the values, I = 1.6 × 10⁻¹⁹ × 9.4 × 10¹⁸ = 1.504 A, approximately 1.5 A.

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