A large electromagnetic coil is connected to a 120 Hz ac source The coil has resistance 400 n, and at this source frequency the coil has inductive reactance 250 (a) What is the inductance of the coil (b) What must the rms voltage of the source be if the coil is to consume an average electrical power of 800 W

Question: A large electromagnetic coil is connected to a 120-Hz ac source. The coil has resistance 400 n, and at this source frequency the coil has

A large electromagnetic coil is connected to a 120-Hz ac source. The coil has resistance 400 n, and at this source frequency the coil has inductive reactance 250 Ω.
(a) What is the inductance of the coil?
(b) What must the rms voltage of the source be if the coil is to consume an average electrical power of 800 W?

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