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MCQs

Total Questions : 71 | Page 1 of 8 pages
Question 1. How much current is produced by a voltage of 18 kV across a 15 kΩ resistance?
  1.    1.2 A
  2.    12 A
  3.    120 mA
  4.    12 mA
 Discuss Question
Answer: Option A. -> 1.2 A
Question 2. Four amperes of current are measured through a 24 Ω resistor connected across a voltage source. How much voltage does the source produce?
  1.    960 V
  2.    9.6 V
  3.    96 V
  4.    8 V
 Discuss Question
Answer: Option C. -> 96 V
Question 3. What is the approximate filament resistance of a light bulb if it operates from a 110 V source and 0.6 A of current is flowing?
  1.    183 Ω
  2.    18.3 Ω
  3.    66 Ω
  4.    6.6 Ω
 Discuss Question
Answer: Option A. -> 183 Ω
Question 4. The ampere is the unit of resistance.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 5. If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be?
  1.    8 V
  2.    320 V
  3.    3.2 V
  4.    32 V
 Discuss Question
Answer: Option D. -> 32 V
Question 6. A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange and silver?
  1.    2 mA
  2.    2.2 mA
  3.    214 mA
  4.    21.4 mA
 Discuss Question
Answer: Option B. -> 2.2 mA
Question 7. Approximately how many milli-amperes of current flow through a circuit with a 40 V source and 6.8 kΩ of resistance?
  1.    27.2 mA
  2.    59 mA
  3.    5.9 mA
  4.    590 mA
 Discuss Question
Answer: Option C. -> 5.9 mA
Question 8. If 750 µA is flowing through 11 kΩ of resistance, what is the voltage drop across the resistor?
  1.    8.25 V
  2.    82.5 V
  3.    14.6 V
  4.    146 V
 Discuss Question
Answer: Option A. -> 8.25 V
Question 9. Approximately how much current flows through a 3.3 MO resistor across a 30 V source?
  1.    9 µA
  2.    90 µA
  3.    900 µA
  4.    9000 µA
 Discuss Question
Answer: Option A. -> 9 µA
Question 10. According to Ohm's Law
  1.    V is directly proportional to I
  2.    V is inversely proportional to I
  3.    V is directly proportional to vI
  4.    All of the above
 Discuss Question
Answer: Option A. -> V is directly proportional to I

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