FIGURE 21-19
-Four capacitors are connected across a 90-V DC as shown in Figure 21-19. What is the voltage across the 6-μF capacitor?
A) 10 V
B) 20 V
C) 30 V
D) 60 V
E) 90 V

Question

FIGURE 21-19 
-Four capacitors are connected across a 90-V DC as shown in Figure 21-19. What is the voltage across the 6-μF capacitor?
A) 10 V 
B) 20 V 
C) 30 V 
D) 60 V 
E) 90 V

Quizplus · Accepted Answer

The capacitors are likely in series or a combination of series and parallel. In a series circuit, the voltage is divided among the capacitors inversely proportional to their capacitance. If the 6-μF capacitor is in series with others, it will have a portion of the total 90 V. Given the options, 30 V is a reasonable division of the total voltage across the capacitors.

FIGURE 21-19 -Four Capacitors Are Connected Across a 90-V DC as Shown