Series and Parallel Circuits MCQ Mock Test - Set 01 - ObjectiveBooks

# Practice Test: Question Set - 01

1. A voltage divider consists of two 100 kÎ© resistors and a 12 V source. What will the output voltage be if a load resistor of 1 MÎ© is connected to the output?
(A) 0.57 V
(B) 6 V
(C) 12 V
(D) 5.7 V

2. In a certain five-step R/2R ladder network, the smallest resistor value is 1 kÎ©. The largest value is
(A) Indeterminable

3. A voltage divider consists of two 68 kÎ© resistors and a 24 V source. The unknown output voltage is
(A) 12 V
(B) 24 V
(C) 0 V
(D) 6 V

4. A certain Wheatstone bridge has the following resistor values: R1 = 10 kÎ©, R2 = 720 Î©, and R4 = 2.4 kÎ©. The unknown resistance is

5. A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Î©. One of the resistors is 2 kÎ©. The other resistor value is

6. Using Kirchhoff's voltage law, you can find the voltages across certain parts of a series-parallel circuit.
(A) True
(B) False

7. Using the current-divider formula, you can find the current in any branch of a series-parallel circuit.
(A) True
(B) False

8. Two 3.3 kÎ© resistors are in series and this series combination is in parallel with a 4.7 kÎ© resistor. The voltage across one of the 3.3 kÎ© resistors is 12 V. The voltage across the 4.7 kÎ© resistor is
(A) 24 V
(B) 12 V
(C) 0 V
(D) 6 V

9. Two 1.2 kÎ© resistors are in series and this series combination is in parallel with a 3.3 kÎ© resistor. The total resistance is

10. A certain voltage divider consists of three 1 kÎ© resistors in series. Which of the following load resistors will have the least effect on the output voltage?

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