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Home ‣ Electrical Engineering ‣ Voltage, Current and Resistance See What Others Are Saying!
  • Question

  • Electrons in the outer orbit are called


  • Options
  • A. nuclei
  • B. valences
  • C. waves
  • D. shells

  • Correct Answer
  • valences 

    • More questions

    • 1. The term choke is more commonly used in connection with an inductor used to block off high frequencies.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. The unit of electrical charge is the

    • Options
    • A. volt
    • B. ampere
    • C. joule
    • D. coulomb
      • Discuss
    • 3. Power is measured in a three-phase load by using an ammeter.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. A 9 mH coil is in parallel with a 0.015 µF capacitor across an 18 kHz ac source. The coil's internal resistance, RW, is 60 Ω. The circuit impedance is

    • Options
    • A. 17,340 Ω
    • B. 1,734 Ω
    • C. 290 Ω
    • D. 1,018 Ω
      • Discuss
    • 5. The average half-cycle value of a sine wave with a 40 V peak is

    • Options
    • A. 25.48 V
    • B. 6.37 V
    • C. 14.14 V
    • D. 50.96 V
      • Discuss
    • 6. A thermistor is a type of

    • Options
    • A. switch
    • B. resistor
    • C. battery
    • D. power supply
      • Discuss
    • 7. A band-pass filter rejects all frequencies within a band between a lower and an upper critical frequency and passes all others.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The resistor voltage in an RL circuit is always out of phase with the current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. The following coils are in parallel: 75 µH, 40 µH, 25 µH, and 15 µH. The total inductance is approximately

    • Options
    • A. 6.9 µH
    • B. 14 µH
    • C. 2.2 µH
    • D. 155 µH
      • Discuss
    • 10. Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 kΩ of resistance?

    • Options
    • A. 27.2 mA
    • B. 59 mA
    • C. 5.9 mA
    • D. 590 mA
      • Discuss

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