FIGURE 26-16
-A 100 V DC signal is applied to four resistors as shown in Fig. 26-16. The values of the resistors are 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the voltage across the 40 Ω resistor?
A)20 V
B)40 V
C)60 V
D)80 V
E)100 V

Question

FIGURE 26-16 
-A 100 V DC signal is applied to four resistors as shown in Fig. 26-16. The values of the resistors are 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the voltage across the 40 Ω resistor?
A)20 V 
B)40 V 
C)60 V 
D)80 V 
E)100 V

Quizplus · Accepted Answer

The resistors are in series, so the total resistance is 200 Ω. The current through the circuit is 100 V / 200 Ω = 0.5 A. The voltage across the 40 Ω resistor is 0.5 A * 40 Ω = 20 V.

FIGURE 26-16 -A 100 V DC Signal Is Applied to Four Resistors