Physics - Current Electricity Question with Solution | TestHub
PhysicsCurrent ElectricityMicroscopicMedium2 minQB
PhysicsMediumsingle choice
A copper wire carries a current of 10 A. It has cross-sectional area of . Density of copper is 8.9 .Molar mass of copper is . The drift speed of the electrons is closest to (Assume one free electron per copper atom.)
Options:
Answer:
A
Solution:
Free-electron density: (one free electron per atom).
Drift speed: .
Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Microscopic
⏱ 2mℹ️ Source: QB
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