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

  • What is the value of the hypotenuse of a right triangle whose sides are 12 and 18?


  • Options
  • A. 4.24
  • B. 3.46
  • C. 2.16
  • D. 21.63

  • Correct Answer
  • 21.63 

    • More questions

    • 1. A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 kΩ. The other resistor value is

    • Options
    • A. 1,403 Ω
    • B. 4.7 kΩ
    • C. 2 kΩ
    • D. 3,403 Ω
      • Discuss
    • 2. Which of the following is not an electrical quantity?

    • Options
    • A. voltage
    • B. current
    • C. distance
    • D. power
      • Discuss
    • 3. On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?

    • Options
    • A. 1 V
    • B. 50 V
    • C. 500 V
    • D. 1,000 V
      • Discuss
    • 4. The power rating of a resistor determines the minimum power that it can handle safely.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. When a sine wave has a frequency of 100 Hz in 12 s it goes through

    • Options
    • A. 1/100 cycle
    • B. 12 cycles
    • C. 120 cycles
    • D. 1,200 cycles
      • Discuss
    • 6. Using the mesh current method, find the branch current, IR1, in the above figure.


    • Options
    • A. 115 mA
    • B. 12.5 mA
    • C. 12.5 A
    • D. 135 mA
      • Discuss
    • 7. A 47 Ω resistor and a capacitor with a capacitive reactance of 120 Ω are in series across an ac source. What is the circuit impedance, Z?

    • Options
    • A. 129 Ω
    • B. 12.9 Ω
    • C. 167 Ω
    • D. 73 Ω
      • Discuss
    • 8. A transformer

    • Options
    • A. changes ac to dc
    • B. changes dc to ac
    • C. steps up or down dc voltages
    • D. steps up or down ac voltages
      • Discuss
    • 9. Resonance is a condition in a series RLC circuit in which the capacitive and inductive reactances are equal in magnitude.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Determine the frequency at which the maximum power is transferred from the amplifier to the speaker in the given figure.


    • Options
    • A. 1,027 Hz
    • B. 10,270 Hz
    • C. 6,330 Hz
    • D. 63,330 Hz
      • Discuss

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