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In a hydrogen atom, an electron moves in an orbit of radius $$5.0 \times 10^{-11}$$m with a speed of $$2.2 \times 10^6$$ m/s. What is the equivalent current? (Electronic charge = $$1.6 \times 10^{-19}$$ C)
0.112 mA
112 mA
11.2 mA
1.12 mA
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