Alternating Current and Voltage

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Across
  1. 1. The relative displacement of a time varying waveform in terms of its occurrence with respect to a reference.
  2. 4. A type of waveform that consists of two equal and opposite steps in voltage or current separated by a time interval.
  3. 5. The time interval required for a pulse to charge from 90% to 10% of its full amplitude.
  4. 6. The time interval of one complete cycle of a given sine wave or any periodic waveform.
  5. 9. Current that reverses direction in response to a change in source voltage polarity.
  6. 11. The voltage or current value of a waveform at its maximum positive or negative points.
  7. 15. A measurement instrument that displays signal waveforms on a screen.
  8. 16. The unit of frequency.
  9. 18. A type of electrical waveform that consists of ramps; a special case of triangular wave.
  10. 20. The activating mechanism of some electronic devices or instruments.
Down
  1. 2. The maximum value of a voltage or current.
  2. 3. The ratio of pulse width to period.
  3. 6. The voltage or current value of a waveform measured from it’s minimum to it’s maximum points.
  4. 7. An energy source that produces electrical signals.
  5. 8. One repetition of a periodic waveform.
  6. 9. It is 0.637 times the peak value.
  7. 10. It is equal to 0.707 times the peak value.
  8. 12. A measure of the rate of change of a periodic.
  9. 13. An electronic circuit that produces a time varying signal without an external input signal using positive feedback.
  10. 14. The value of a quantity, such as the number of volts of voltage or the number of amperes of current.
  11. 17. The pattern of variations of a voltage or current showing how the quantity changes with time.
  12. 19. The frequencies contained in a composite waveform. Which are integer multiplies of the repetition frequency.