Two Identical Heating Coils Are Connected to a Constant-Voltage Line

Multiple Choice

Two identical heating coils are connected to a constant-voltage line. To get the largest amount of heat per minute, the coils should be connected

A) in series because four times as much heat per minute will be dissipated as in the parallel combination.
B) in series because twice as much heat per minute will be dissipated as in the parallel combination.
C) either in series or in parallel; they will dissipate the same amount of heat per minute.
D) in parallel because twice as much heat per minute will be dissipated as in the series combination.
E) in parallel because four times as much heat per minute will be dissipated as in the series combination.