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Home Electronics Series Circuits See What Others Are Saying!
  • Question
  • If a 220 Ω, a 100 Ω, and a 180 Ω resistor are connected in series across a 12 V source, the circuit current equals ___.


  • Options
  • A. 41.67 A
  • B. 120 mA
  • C. 500 A
  • D. 24 mA

  • Correct Answer
  • 24 mA 


  • More questions

    • 1. In a common-base (C-B) amplifier, the output is 180 degrees out of phase with the input.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. What is the inductive reactance if the Q of a coil is 60, and the winding resistance is 5 Ω?

    • Options
    • A. 0.083 Ω
    • B. 12 Ω
    • C. 30 Ω
    • D. 300 Ω
    • Discuss
    • 3. A magnitude comparator outputs the highest or lowest value of its inputs depending on control signals.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. What is the total power loss if 2 kΩ and 1 kΩ parallel-connected resistors have an IT of 3 mA?

    • Options
    • A. 6 µW
    • B. 36 µW
    • C. 6 mW
    • D. 36 mW
    • Discuss
    • 5. A test equipment item that has the ability to produce either square, triangular, or sawtooth waveforms is called:

    • Options
    • A. a function generator
    • B. a radio frequency generator
    • C. an audio frequency generator
    • D. a frequency meter or counter
    • Discuss
    • 6. A BCD code that represents each digit of a decimal number by a binary number derived by adding 3 to its 4-bit true binary value is _________.

    • Options
    • A. 9's complement code
    • B. excess-3 code
    • C. 8421 code
    • D. gray code
    • Discuss
    • 7. The small amount of ac signal present on the output of a filtering network for a dc power supply is known as ________.

    • Options
    • A. pulsating dc
    • B. trickle
    • C. ripple
    • D. waffle
    • Discuss
    • 8. An astable multivibrator has two states.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. Thermal shutdown occurs in an IC regulator if:

    • Options
    • A. power dissipation is too high
    • B. internal temperature is too high
    • C. current through the device is too high
    • D. load resistance increases
    • Discuss
    • 10. The output of an RL differentiator is taken from across the inductor.

    • Options
    • A. True
    • B. False
    • Discuss


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