Resistors in combination: In the circuit shown in the figure, all the lightbulbs are identical. Which of the following is the correct ranking of the brightness of the bulbs?
A) B and C have equal brightness, and A is the dimmest.
B) A and B have equal brightness, and C is the dimmest.
C) A is brightest, C is dimmest, and B is in between.
D) A is the brightest, and B and C have equal brightness but less than A.
E) All three bulbs have the same brightness.

Question

Resistors in combination: In the circuit shown in the figure, all the lightbulbs are identical. Which of the following is the correct ranking of the brightness of the bulbs? 
A) B and C have equal brightness, and A is the dimmest. 
B) A and B have equal brightness, and C is the dimmest. 
C) A is brightest, C is dimmest, and B is in between. 
D) A is the brightest, and B and C have equal brightness but less than A. 
E) All three bulbs have the same brightness.

Quizplus · Accepted Answer

The Answer of Resistors in combination: In the circuit shown in the figure, all the lightbulbs are identical. Which of the following is the correct ranking of the brightness of the bulbs? 
A) B and C have equal brightness, and A is the dimmest. 
B) A and B have equal brightness, and C is the dimmest. 
C) A is brightest, C is dimmest, and B is in between. 
D) A is the brightest, and B and C have equal brightness but less than A. 
E) All three bulbs have the same brightness.

Resistors in Combination: in the Circuit Shown in the Figure