College Physics 10th Edition by Raymond Serway,Chris Vuille

تمرين 57

A multimeter in an RL circuit records an rms current of 0.500 A and a 60.0-Hz rms generator voltage of 104 V. A wattmeter shows that the average power delivered to the resistor is 10.0 W. Determine (a) the impedance in the circuit, (b) the resistance R , and (c) the inductance L.