Series-parallel Circuits Mcqs – (Electrical Engineering) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests
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The first goal to accomplish in analyzing a complex series-parallel circuit is to____________?
A. equate all series components
B. solve for the total current and resistance
C. solve for all the voltage drops
D. equate all parallel components
The positive (+) and negative (-) ends of the battery are called ___________?
A. battery knobs
B. circuit diagram
C. battery terminals
D. battery sides
When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?
A. half the source voltage
B. twice the source voltage
C. zero volts
D. the same as the source voltage
In a series–parallel circuit, individual component power dissipation are calculated using_____________?
A. individual component parameters
B. a percent of the voltage division ratio squared
C. total current squared multiplied by the resistor values
D. a percent of the total power depending on resistor ratios
In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with R3, if R1 opens, then R2‘s voltage will:___________?
A. remain the same
B. increase
C. decrease
D. cannot tell
The current flowing through an unloaded voltage divider is called the____________?
A. bleeder current
B. resistor current
C. load current
D. voltage current
With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current of R2 if R1 is series connected with parallel circuit R2 and R3?
A. 600 mA
B. 400 mA
C. 200 mA
D. 800 mA
If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?
A. increases
B. remains the same
C. cannot tell
D. decreases
A Wheatstone bridge can be used to determine an unknown_____________?
A. voltage
B. current
C. resistance
D. power
A device able to supply electrical energy is a __________?
A. conductor
B. battery
C. nonconductor
D. microwave
A 6 V battery output is divided down to obtain two output voltages. Three 2.2 kΩ resistors are used to provide the two taps. The two output voltages are___________?
A. 2 V, 4 V
B. 2 V, 6 V
C. 2 V, 2 V
D. 4 V, 6 V
The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________?
A. 200,000 Ω
B. 100,000 Ω
C. 20,000 Ω
D. 1,000,000 Ω
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?
A. 1 MΩ
B. 1 kΩ
C. 100 kΩ
D. 330 Ω
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____________?
A. 5,700 Ω
B. 1,389 Ω
C. 138 Ω
D. 880 Ω
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?
A. 24 kΩ
B. 1 MΩ
C. 18 kΩ
D. 12 kΩ
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___________?
A. 1,078 Ω
B. 1,650 Ω
C. 77.8 Ω
D. 778 Ω
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__________?
A. 100 %
B. 20 %
C. 25 %
D. 50 %
On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?
A. 50 V
B. 1 V
C. 500 V
D. 1,000 V
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)___________?
A. 2.2 kΩ
B. 6.8 kΩ
C. 6.8 kΩ and 10 kΩ
D. 2.2 kΩ and 1 kΩ
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____________?
A. 470 Ω or 1.2 kΩ
B. 1.2 kΩ
C. 470 Ω
D. 3 kΩ
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____________?
A. 200 Ω
B. 1,029 Ω
C. 680 Ω
D. 880 Ω
In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is___________?
A. 10 kΩ
B. 2 kΩ
C. Indeterminable
D. 20 kΩ
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___________?
A. 900 μA
B. 90 mA
C. 9 mA
D. 800 μA
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?
A. 0.57 V
B. 12 V
C. 6 V
D. 5.7 V
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_________?
A. 24 V
B. 0 V
C. 12 V
D. 6 V
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____________?
A. 2 kΩ
B. 4.7 kΩ
C. 1,403 Ω
D. 3,403 Ω
A certain Wheatstone bridge has the following resistor values: R1 = 10 kΩ, R2 = 720 Ω, and R4 = 2.4 kΩ. The unknown resistance is_____________?
A. 2.4 Ω
B. 24 Ω
C. 300 Ω
D. 3,000 Ω
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___________?
A. 5 mA
B. 1.4 mA
C. 14 mA
D. 50 mA
A voltage divider consists of two 68 kΩ resistors and a 24 V source. The unknown output voltage is______________?
A. 12 V
B. 0 V
C. 24 V
D. 6 V