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Home ‣ Electrical Engineering ‣ Alternating Current and Voltage Comments
  • Question

  • Two series resistors are connected to an ac source. If there are 7.5 V rms across one resistor and 4.2 V rms across the other, the peak source voltage is


  • Options
  • A. 16.54 V
  • B. 1.65 V
  • C. 10.60 V
  • D. 5.93 V

  • Correct Answer
  • 16.54 V 

    • Alternating Current and Voltage problems

    Search Results

    • 1. Find the node voltage VA.


    • Options
    • A. 518 mV
    • B. 5.18 V
    • C. 9.56 V
    • D. 956 mV
      • Discuss
    • 2. What is the voltage drop across R3?


    • Options
    • A. 112 mV
    • B. 11.25 V
    • C. 180 mV
    • D. 1.80 V
      • Discuss
    • 3. What is the voltage drop across R2?


    • Options
    • A. 3.5 V
    • B. 4.18 V
    • C. 1.5 V
    • D. 145 mV
      • Discuss
    • 4. What is the voltage drop across R1?


    • Options
    • A. 850 mV
    • B. 7.82 V
    • C. 9.18 V
    • D. 918 mV
      • Discuss
    • 5. The first row of a certain determinant has the numbers 3 and 5. The second row has the numbers 7 and 2. The value of this determinant is

    • Options
    • A. 31
    • B. ?31
    • C. 39
    • D. ?29
      • Discuss
    • 6. If the rms current through a 6.8 kΩ resistor is 8 mA, the rms voltage drop across the resistor is

    • Options
    • A. 5.44 V
    • B. 54.4 V
    • C. 7.07 V
    • D. 8 V
      • Discuss
    • 7. How many degrees are there in Π/3 rad?

    • Options
    • A. 6°
    • B. 60°
    • C. 180°
    • D. 27°
      • Discuss
    • 8. A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is

    • Options
    • A. 4 V
    • B. 4.6 V
    • C. 1.6 V
    • D. 11 V
      • Discuss
    • 9. A sawtooth wave has a period of 10 ms. Its frequency is

    • Options
    • A. 10 Hz
    • B. 50 Hz
    • C. 100 Hz
    • D. 1,000 Hz
      • Discuss
    • 10. 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

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