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MCQs

Total Questions : 82 | Page 1 of 9 pages
Question 1. The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is
  1.    20,000 Ω
  2.    100,000 Ω
  3.    200,000 Ω
  4.    1,000,000 Ω
 Discuss Question
Answer: Option B. -> 100,000 Ω
Question 2. A 6 V battery output is divided down to obtain two output voltages. Three 2.2 kΩ resistors are used to provide the two taps. The two output voltages are
  1.    2 V, 4 V
  2.    2 V, 2 V
  3.    2 V, 6 V
  4.    4 V, 6 V
 Discuss Question
Answer: Option A. -> 2 V, 4 V
Question 3. A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage?
  1.    1 MΩ
  2.    24 kΩ
  3.    18 kΩ
  4.    12 kΩ
 Discuss Question
Answer: Option D. -> 12 kΩ
Question 4. A certain voltage divider consists of three 1 kΩ resistors in series. Which of the following load resistors will have the least effect on the output voltage?
  1.    1 MΩ
  2.    100 kΩ
  3.    1 kΩ
  4.    330 Ω
 Discuss Question
Answer: Option A. -> 1 MΩ
Question 5. Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is
  1.    138 Ω
  2.    1,389 Ω
  3.    5,700 Ω
  4.    880 Ω
 Discuss Question
Answer: Option B. -> 1,389 Ω
Question 6. The parallel combination of a 470 Ω resistor and a 680 Ω resistor is in series with the parallel combination of four 2 kΩ resistors. The total resistance is
  1.    1,650 Ω
  2.    1,078 Ω
  3.    77.8 Ω
  4.    778 Ω
 Discuss Question
Answer: Option D. -> 778 Ω
Question 7. To derive 18 V and 12 V from a 24 V supply requires a voltage divider with three taps.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 8. Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is
  1.    24 V
  2.    12 V
  3.    0 V
  4.    6 V
 Discuss Question
Answer: Option A. -> 24 V
Question 9. A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 kΩ. The other resistor value is
  1.    1,403 Ω
  2.    4.7 kΩ
  3.    2 kΩ
  4.    3,403 Ω
 Discuss Question
Answer: Option B. -> 4.7 kΩ
Question 10. A voltage divider consists of two 100 kΩ resistors and a 12 V source. What will the output voltage be if a load resistor of 1 MΩ is connected to the output?
  1.    0.57 V
  2.    6 V
  3.    12 V
  4.    5.7 V
 Discuss Question
Answer: Option D. -> 5.7 V

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