A large electromagnet coil is connected to a 121 hz ac, Ask an Expert

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A large electromagnet coil is connected to a 121 Hz ac source. The coil has a resistance 410 ohms , and at this source frequency the coil has an inductive reactance 260 ohms.

Part A What is the inductance of the coil?

in H

Part B What must the rms voltage of the source be if the coil is to consume an average electrical power of 810W?

in V

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