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  • Question
  • A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is


  • Options
  • A. 55 mH
  • B. less than 0.2 mH
  • C. less than 5.5 mH
  • D. 5.5 mH

  • Correct Answer
  • 5.5 mH 


  • More questions

    • 1. The voltage induced across a certain coil is 200 mV. A 120 Ω resistor is connected to the coil terminals. The induced current is

    • Options
    • A. 1.7 mA
    • B. 16 mA
    • C. 12 mA
    • D. 120 mA
    • Discuss
    • 2. A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

    • Options
    • A. increases
    • B. remains constant
    • C. decreases
    • D. ceases
    • Discuss
    • 3. A sudden increase in the total current into a parallel circuit may indicate

    • Options
    • A. a drop in source voltage
    • B. an open resistor
    • C. an increase in source voltage
    • D. either a drop in source voltage or an open resistor
    • Discuss
    • 4. A 12 kHz voltage is applied to a 0.33 µF capacitor, and 200 mA of rms current is measured. What is the value of the voltage?

    • Options
    • A. 8 V
    • B. 80 V
    • C. 80 mV
    • D. 800 mV
    • Discuss
    • 5. A 3.3 kΩ resistor and a 120 mH coil are in parallel. Both components are across a 2 kHz, 12 V ac source. The total current in the circuit is

    • Options
    • A. 8.74 mA
    • B. 874 mA
    • C. 874 µA
    • D. 8.74 µA
    • Discuss
    • 6. A 15 Ω resistor, a 220 µH coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?

    • Options
    • A. 138 MHz
    • B. 10,866 Hz
    • C. 1,907 Hz
    • D. 138 kHz
    • Discuss
    • 7. Referring to Problem 20, what is the total parallel resistance (Rp(tot))?

    • Options
    • A. 4.99 Ω
    • B. 499 Ω
    • C. 4,992 Ω
    • D. 6,800 Ω
    • Discuss
    • 8. A 200 Ω resistor, a coil with 30 Ω of reactance, and a capacitor of unknown reactance are in series across an ac source. The circuit is at resonance. Circuit impedance

    • Options
    • A. is 230 Ω
    • B. is 170 Ω
    • C. is 200 Ω
    • D. cannot be determined
    • Discuss
    • 9. A 680 Ω load resistor, RL, is connected across a constant current source of 1.2 A. The internal source resistance, RS, is 12 kΩ. The load current, RL, is

    • Options
    • A. 0 A
    • B. 1.2 A
    • C. 114 mA
    • D. 1.14 A
    • Discuss
    • 10. There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 µWb?

    • Options
    • A. 14,400 At/Wb
    • B. 1,440 At/Wb
    • C. 9,000 At/Wb
    • D. 90,000 At/Wb
    • Discuss


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