The coils of a motors rotor have resistance of 20 omega, Ask an Expert

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The coils of a motor's rotor have resistance of 2.0 Ω. When the motor runs at full speed, powered by 115V linevoltage it draws a current of 9A.

What is the back electromagnetic field (emf) in this motor under those conditions?
If the motor is prevented from turning, what would be the current drawn?
How much more heat would be generated in the coils in that situation?

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Category:- Physics
Reference No.:- M91095524

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