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PhysicsQ&A LibraryHow long does it take electrons to get from a car battery to the starting motor? Assume the current is 290 A and the electrons travel through a copper wire with cross-sectional area 0.260 cm2 and length 0.900 m. The number of charge carriers per unit volume is 8.49 × 1028 m-3.Question

How long does it take electrons to get from a car battery to the starting motor? Assume the current is 290 A and the electrons travel through a copper wire with cross-sectional area 0.260 cm^{2} and length 0.900 m. The number of charge carriers per unit volume is 8.49 × 10^{28} m^{-3}.

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