If four 10 k? resistors are in series with a single 20 k? resistor and one of th

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Question
If four 10 kΩ resistors are in series with a single 20 kΩ resistor and one of the parallel resistors shorts, the voltage across the other parallel resistors ________.
Options
A. increases
B. decreases
C. remains the same
D. drops to zero

Correct Answer

decreases

Series-Parallel Circuits problems

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1. When a load is connected to a voltage divider, the total resistance of the circuit will ________.
Options
A. increase
B. decrease
C. remain the same
D. double

Discuss

Correct Answer: decrease

2.

In the given circuit, the total resistance (R_T) between points A and B equals _____.
Options
A. 10 Ω
B. 100 Ω
C. 900 Ω
D. 1,010 Ω

Discuss

Correct Answer: 100 Ω

3. Series components in a series?parallel circuit may be in series with other _______________ components, or with other _______________ components.
Options
A. individual, combinations of
B. series, parallel
C. parallel, series
D. shunt, parallel

Discuss

Correct Answer: individual, combinations of

4.

In the given circuit, the current flowing through R₃ equals ______.
Options
A. 10 mA
B. 21.11 mA
C. 90 mA
D. 100 mA

Discuss

Correct Answer: 10 mA

5. If a Wheatstone bridge is balanced, its output voltage is ____.
Options
A. the same as its input voltage
B. very high
C. dependent on the unknown resistor value
D. equal to 0 V

Discuss

Correct Answer: equal to 0 V

6.

In the given circuit, the voltage at point A equals ______.
Options
A. ?10 V
B. +1 V
C. +9 V
D. +10 V

Discuss

Correct Answer: +10 V

7. ___ is often used to analyze multiple-source circuits.
Options
A. Thevenin's theorem
B. Superposition
C. Kirchhoff's law
D. Ohm's law

Discuss

Correct Answer: Superposition

8.

In the given circuit, the voltage dropped across R₁ equals _____.
Options
A. 1 V
B. 9 V
C. 10 V
D. 19 V

Discuss

Correct Answer: 9 V

9.

If the voltage between points A and B equals 9 V in the given circuit, then V_R3 equals ______.
Options
A. 0.9 V
B. 8.1 V
C. 9 V
D. More information is needed to find V_R3.

Discuss

Correct Answer: 8.1 V

10. A Thevenin equivalent circuit contains _____.
Options
A. a voltage source in series with a resistance
B. a current source in series with a resistance
C. resistors in a series-parallel configuration
D. many voltage sources

Discuss

Correct Answer: a voltage source in series with a resistance

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If four 10 kΩ resistors are in series with a single 20 kΩ resistor and one of the parallel resistors shorts, the voltage across the other parallel resistors ________.

Series-Parallel Circuits problems

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