A heater is rated at 1200 watts for a 120-volt source.
If two heaters are connected in parallel across the 120-volt source, the total power drawn from the source increases to 2400 watts.

Question

A heater is rated at 1200 watts for a 120-volt source. 
If two heaters are connected in parallel across the 120-volt source, the total power drawn from the source increases to 2400 watts.

Quizplus · Accepted Answer

When heaters are connected in parallel, the voltage across each heater remains the same (120V in this case), but the total current drawn from the source increases. Therefore, the total power is the sum of the power of each heater, which is 1200 watts + 1200 watts = 2400 watts.

A Heater Is Rated at 1200 Watts for a 120-Volt