Chapter 4: Q19E (page 1045)
The power of a certain CD player operating at 120 V rms is 20.0 W. Assuming that the CD player behaves like a pure resistor, find (a) the maximum instantaneous power; (b) the rms current; (c) the resistance of this player.
Short Answer
a) The maximum instantaneous power of the CD Player is 40 W
b) The RMS value of current is 0.167 A
c) The resistance of the CD player is 717 Ω