Question: (a) What rms current is drawn by a 4200-W electric room heater when running on 120 V rms? (b) What is the power dissipation by

(a) What rms current is drawn by a 4200-W electric room heater when running on 120 V rms?
(b) What is the power dissipation by the heater if the voltage drops to 105 V rms during a brownout? Assume the resistance stays the same.

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