An electric heater draws an average power of 1100 Watts when plugged into a 110 V-rms outlet. Calculate the resistance of the heater and the rms current.
A) 11Ω, 10 A (rms)
B) 110Ω, 10 A (rms)
C) 10Ω, 11 A (rms)
D) 10Ω, 110 A (rms)
E) 0.09Ω, 11 A (rms)

Question

Quizplus · Accepted Answer

The resistance of the heater can be calculated using Ohm's law: R = V/I, where V is the voltage and I is the current. The rms current can be calculated using the formula: I = P/V, where P is the power. Substituting the given values, we get: R = 110 V / 10 A = 11 Ω and I = 1100 W / 110 V = 10 A (rms).

An Electric Heater Draws an Average Power of 1100 Watts