FIGURE 26-2
-In Fig. 26-2 all the lightbulbs are identical. The lightbulbs are ranked in decreasing order of their brightness. What is the correct ranking?
A)(B and C are the same.), A
B)(A & B are the same.), C
C)A, B, C
D)A, (B and C are the same.)
E)All 3 lightbulbs have the same brightness.

Question

FIGURE 26-2 
-In Fig. 26-2 all the lightbulbs are identical. The lightbulbs are ranked in decreasing order of their brightness. What is the correct ranking?
A)(B and C are the same.), A 
B)(A & B are the same.), C 
C)A, B, C 
D)A, (B and C are the same.) 
E)All 3 lightbulbs have the same brightness.

Quizplus · Accepted Answer

The brightness of a lightbulb is determined by the power it dissipates, which depends on the voltage across it and the current through it. Assuming the bulbs are in a simple series or parallel circuit, bulb A likely has the highest brightness due to its position in the circuit, while bulbs B and C have the same brightness if they are in parallel with each other.

FIGURE 26-2 -In Fig. 26-2 All the Lightbulbs Are Identical. the Lightbulbs