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Physics, 22.04.2020 00:20 kidlol

The motor in a toy car is powered by four batteries in series, which produce a total emf of 6.3 V. The motor draws 3.1 A and develops a 2.1 V back emf at normal speed. Each battery has a 0.18 Ω internal resistance. what is the resistance of the motor?

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The motor in a toy car is powered by four batteries in series, which produce a total emf of 6.3 V. T...

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