Question: A certain electrical device draws 10 A rms and has an average power of 720 W when connected to a 120-V-rms, 60-Hz power line. (a)

A certain electrical device draws 10 A rms and has an average power of 720 W when connected to a 120-V-rms, 60-Hz power line.

(a) What is the impedance of the device?

(b) What series combination of resistance and reactance is this device equivalent to?

(c) If the current leads the emf, is the reactance inductive or capacitive?


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