Exercise: Series Parallel Circuits

Questions for: Series Parallel Circuits

The internal resistance of a 30,000 ohm/volt voltmeter set on its 50 V range is
A:
15,000
B:
150,000
C:
1,500,000
D:
15,000,000
Answer: C
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On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?
A:
1 V
B:
50 V
C:
500 V
D:
1,000 V
Answer: D
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A certain Wheatstone bridge has the following resistor values: R1 = 10 k, R2 = 720 , and R4 = 2.4 k. The unknown resistance is
A:
24
B:
2.4
C:
300
D:
3,000
Answer: D
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The parallel combination of a 470 resistor and a 1.5 k resistor is in series with the parallel combination of five 1 k resistors. The source voltage is 50 V. The percentage of the load current through any single 1 k resistor is
A:
25%
B:
20%
C:
100%
D:
50%
Answer: B
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A certain voltage divider consists of three 1 k resistors in series. Which of the following load resistors will have the least effect on the output voltage?
A:
1 M
B:
100 k
C:
1 k
D:
330
Answer: A
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