Electronics - Series-Parallel Circuits

Exercise :: Series-Parallel Circuits - Filling the Blanks

1. 

The loading effect of a voltmeter can be ignored if ____.

A. the measured voltage is very high
B. the measured voltage is very low
C. the meter's resistance is at least 10 times greater than the resistance across which it is connected
D. the meter's resistance is at least 10 times less than the resistance across which it is connected

Answer: Option C

Explanation:

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2. 

A Thevenin equivalent circuit contains _____.

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

Answer: Option A

Explanation:

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3. 

In the given circuit, the current flowing through R3 equals ______.

A. 10 mA
B. 21.11 mA
C. 90 mA
D. 100 mA

Answer: Option A

Explanation:

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4. 

Series components in a series–parallel circuit may be in series with other _______________ components, or with other _______________ components.

A. individual, combinations of
B. series, parallel
C. parallel, series
D. shunt, parallel

Answer: Option A

Explanation:

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5. 

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

A. increases
B. decreases
C. remains the same
D. drops to zero

Answer: Option B

Explanation:

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