Identical light bulbs can be attached to identical ideal batteries in three different ways (A,B,orC),as shown in the figure.The ranking (from lowest to highest)of the total power produced by the battery is
A)B,A,C.
B)A,B,C.
C)C,B,A.
D)A,C,B.

Question

Quizplus · Accepted Answer

In case A, the battery is connected to a single bulb, so the power produced is P. In case B, the battery is connected to two bulbs in parallel, so the power produced is 2P. In case C, the battery is connected to two bulbs in series, so the power produced is P/2. Therefore, the ranking from lowest to highest is A, B, C.

Identical Light Bulbs Can Be Attached to Identical Ideal Batteries