Series Parallel Circuits MCQs with Explanations

Imagine the three 2.2 kΩ resistors connected one after another, forming a series circuit. The 6V battery is connected across this entire series. The voltage drops across resistors in a series are proportional to their resistance. Since all resistors have the same resistance, the voltage will be divided equally. Calculating the voltage drop across each resistor: Since there are three equal resistors, the 6V will be divided into three equal parts. 6V / 3 = 2V per resistor. Finding the output voltages: The first tap is after the first resistor. Thus, the voltage at the first tap with respect to ground is the voltage drop across that resistor, which is 2V. The second tap is after the second resistor. Therefore, the voltage at the second tap with respect to ground is the sum of the voltage drops across the first two resistors. That means 2V + 2V = 4V. Therefore, the two output voltages are 2V and 4V. The Correct Answer is Option A: 2 V, 4 V.

100,000 Ω is the correct answer to “The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

1 MΩ is the correct answer to “A certain voltage divider consists of three 1 kΩ resistors in series. Which of the following load resistors will have the least effect on the output voltage”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

12 kΩ is the correct answer to “A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

1,389 Ω is the correct answer to “Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

778 Ω is the correct answer to “The parallel combination of a 470 Ω resistor and a 680 Ω resistor is in series with the parallel combination of four 2 kΩ resistors. The total resistance is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “To derive 18 V and 12 V from a 24 V supply requires a voltage divider with three taps.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

24 V is the correct answer to “Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

5.7 V is the correct answer to “A voltage divider consists of two 100 kΩ resistors and a 12 V source. What will the output voltage be if a load resistor of 1 MΩ is connected to the output”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

4.7 kΩ is the correct answer to “A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 kΩ. The other resistor value is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “Using Kirchhoff's voltage law, you can find the voltages across certain parts of a series-parallel circuit.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “Using the current-divider formula, you can find the current in any branch of a series-parallel circuit.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “A resistor ladder network is a special type of series-parallel circuit.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

20 % is the correct answer to “The parallel combination of a 470 Ω resistor and a 1.5 kΩ resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 KΩ resistor is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

1,000 V is the correct answer to “On which of the following voltage range settings will a voltmeter present the minimum load on a circuit”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “A Wheatstone bridge is often shown in a "diamond" configuration.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

3,000 Ω is the correct answer to “A certain Wheatstone bridge has the following resistor values: R1 = 10 kΩ, R2 = 720 Ω, and R4 = 2.4 kΩ. The unknown resistance is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

900 μA is the correct answer to “Three 10 kΩ resistors are connected in series. A 20 kΩ resistor is connected in parallel across one of the 10 kΩ resistors. The voltage source is 24 V. The total current in the circuit is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

6.8 kΩ and 10 kΩ is the correct answer to “The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “Two equal-value resistors in series will divide the source voltage equally.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

470 Ω is the correct answer to “The parallel combination of a 470 Ω resistor and a 1.2 kΩ resistor is in series with the parallel combination of three 3 kΩ resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

False is the correct answer to “A Wheatstone bridge consists of four resistors in parallel.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

2 kΩ is the correct answer to “In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

1,029 Ω is the correct answer to “A balanced Wheatstone bridge consists of an RV of 3,500 Ω, an R2 of 200 Ω, and an R3 of 680 Ω. The value of RUNK is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

False is the correct answer to “The higher the range setting, the less the internal resistance and the greater the load effect of the voltmeter on a circuit.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

1.4 mA is the correct answer to “A 12 kΩ resistor, a 15 kΩ resistor, and a 22 kΩ resistor are in series with two 10 kΩ resistors that are in parallel. The source voltage is 75 V. Current through the 15 kΩ resistor is approximately”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

12 V is the correct answer to “A voltage divider consists of two 68 kΩ resistors and a 24 V source. The unknown output voltage is”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

True is the correct answer to “A smaller-value load resistor will cause the output voltage to change more than a larger-value one.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.

False is the correct answer to “A galvanometer is a meter that measures small amounts of voltage.”. This question is standard in competitive examination syllabi for Series Parallel Circuits.