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Home ‣ Electrical Engineering ‣ Parallel Circuits See What Others Are Saying!
  • Question

  • An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately


  • Options
  • A. 55 Ω
  • B. 5.5 Ω
  • C. 50 Ω
  • D. 9 Ω

  • Correct Answer
  • 5.5 Ω 

    • More questions

    • 1. The superposition theorem is useful for circuit analysis only in ac circuits.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. In a balanced three-phase load, each phase has

    • Options
    • A. an equal amount of power
    • B. one-third of total power
    • C. two-thirds of total power
    • D. a power consumption equal to IL
      • Discuss
    • 3. A capacitor with 150 Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is

    • Options
    • A. Z = 150
    • B. Z = 150∠90°Ω
    • C. Z = 150 ∠?90°Ω
    • D. Z = 150∠180°Ω
      • Discuss
    • 4. In assigning the direction of branch currents,

    • Options
    • A. the directions are critical
    • B. the directions are not critical
    • C. they must point into a node
    • D. they must point out of a node
      • Discuss
    • 5. A square wave has a period of 60 µs. The first odd harmonic is

    • Options
    • A. 5 kHz
    • B. 50 kHz
    • C. 500 kHz
    • D. 33.33 kHz
      • Discuss
    • 6. A resistor and a capacitor are in series across a 20 V ac source. Circuit impedance is 4.33 kΩ. Current flow in the circuit is

    • Options
    • A. 9.2 mA
    • B. 92 mA
    • C. 4.6 mA
    • D. 460 mA
      • Discuss
    • 7. Four amperes of current are measured through a 24 Ω resistor connected across a voltage source. How much voltage does the source produce?

    • Options
    • A. 960 V
    • B. 9.6 V
    • C. 96 V
    • D. 8 V
      • Discuss
    • 8. The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is

    • Options
    • A. 1.8 mV
    • B. 18 mV
    • C. 180 mV
    • D. 1.25 mV
      • Discuss
    • 9. A Wheatstone bridge consists of four resistors in parallel.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A resistor normally opens when it burns out.

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

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