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

  • 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

  • Correct Answer
  • 50 kHz 

    • More questions

    • 1. When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage

    • Options
    • A. increases
    • B. decreases
    • C. remains constant
    • D. reaches zero
      • Discuss
    • 2. A red, red, orange, gold resistor has a nominal value of

    • Options
    • A. 22,000 Ω
    • B. 2,200 Ω
    • C. 22 Ω
    • D. 2.2 Ω
      • Discuss
    • 3. Second-order determinants are evaluated by subtracting the signed cross-products.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Four equal-value resistors are in series with a 12 V battery and 13.63 mA are measured. The value of each resistor is

    • Options
    • A. 22 Ω
    • B. 220 Ω
    • C. 880 Ω
    • D. 88 Ω
      • Discuss
    • 6. A resonant circuit has a lower critical frequency of 7 kHz and an upper critical frequency of 13 kHz. The bandwidth of the circuit is

    • Options
    • A. 7 kHz
    • B. 13 kHz
    • C. 20 kHz
    • D. 6 kHz
      • Discuss
    • 7. Fourteen milliamperes can be expressed as

    • Options
    • A. 14 MA
    • B. 14 µA
    • C. 14 kA
    • D. 14 mA
      • Discuss
    • 8. A series circuit consists of a 4.7 kΩ, a 12 kΩ, and a 2.2 kΩ resistor. The resistor that has the most voltage drop is

    • Options
    • A. the 12 kΩ
    • B. the 2.2 kΩ
    • C. the 4.7 kΩ
    • D. impossible to determine from the given information
      • Discuss
    • 9. Point +4 on the complex plane is

    • Options
    • A. 4 units above the origin on the j axis
    • B. 4 units below the origin on the j axis
    • C. 4 units right of the origin on the real axis
    • D. 4 units left of the origin on the real axis
      • Discuss
    • 10. Polyphase is characterized by two or more sinusoidal voltages, each having a different phase angle.

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

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