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Electrical Engineering - Series-Parallel Circuits


Exercise

"You cannot shake hands with a clenched fist."
- Indira Gandhi
1. 

The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is

A. 20,000
B. 100,000
C. 200,000
D. 1,000,000

2. 

Two 1.2 k resistors are in series and this series combination is in parallel with a 3.3 k resistor. The total resistance is

A. 138
B. 1,389
C. 5,700
D. 880

3. 

The output of a certain voltage divider is 12 V with no load. When a load is connected, the output voltage

A. decreases
B. increases
C. remains the same
D. becomes zero

4. 

A certain voltage divider consists of two 12 k resistors in series. Which of the following load resistors will have the most effect on the output voltage?

A. 1 M
B. 24 k
C. 18 k
D. 12 k

5. 

A voltage divider consists of two 68 k resistors and a 24 V source. The unknown output voltage is

A. 12 V
B. 24 V
C. 0 V
D. 6 V




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