Electrical Engineering - Series-Parallel Circuits

Exercise :: Series-Parallel Circuits - General Questions

11. 

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: Option C

Explanation:

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12. 

The parallel combination of a 6.8 k resistor and a 10 k resistor is in series with the parallel combination of a 2.2 k resistor and a 1 k resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)

A. 6.8 k
B. 2.2 k
C. 6.8 k and 10 k
D. 2.2 k and 1 k

Answer: Option C

Explanation:

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13. 

When a load resistance is removed from the output of a voltage divider circuit, the current drawn from the source

A. decreases
B. increases
C. remains the same
D. is cut off

Answer: Option A

Explanation:

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14. 

A certain circuit is composed of two parallel resistors. The total resistance is 1,403 . One of the resistors is 2 k. The other resistor value is

A. 1,403
B. 4.7 k
C. 2 k
D. 3,403

Answer: Option B

Explanation:

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15. 

The parallel combination of a 470 resistor and a 680 resistor is in series with the parallel combination of four 2 k resistors. The total resistance is

A. 1,650
B. 1,078
C. 77.8
D. 778

Answer: Option D

Explanation:

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