what is waveform, amplitude, cycle, time-period, phase & phase difference

what is waveform, amplitude, cycle, time-period, phase & phase difference in AC circuits of electrical engineering “EEE”.

Waveform

The graphical representation of alternating quantities with respect to time is known as waveform or waveshape.

 Amplitude

The maximum value, positive or negative, of an alternating quantity in half cycle is known as its amplitude. It is

Cycle

One complete set of positive and negative values of alternating quantity is known as a cycle.

Time-period

 Time required 10 complete one cycle is called time-period. T= 1/f

Unit of time is second i.e. T = second/cycle

Phase

It is part of time-period after the alternating quantity passed through zero position or it is phase angle position of quantity.

Phase difference

If two alternating quantities do not reach their zero value in the same direction simultaneously then they have phase difference. The difference of phase angle between two quantities on the same reference axis is known as phase difference.


A.C. CIRCUITS TOPIC

  1. Introduction Of AC Circuits In Electrical Engineering
  2. How emf is induced in single phase system ? single phase generation .
  3. Explain what is ac quantity : and Advantages of AC over DC in circuits
  4. What is waveform, amplitude, cycle, time-period, phase & phase difference
  5. Define RMS & average value as applied to A.C. voltage & current
  6. What is form factor? crest factor? peak factor? & power factor? in ac circuits
  7. what is phasor diagram, phasor algebra, leading & lagging ac quantities
  8. Phasor representation of alternating quantities – resistive, inductive, capacitive
  9. What is R-L-C series connection for A.C. circuit ? Explanation
  10. What is series combination of R-L circuit ? Explanation
  11. Define what is active power, reactive power, apparent power & power factor
  12. Explain what is series combination of R-C circuit in electrical engineering
  13. What is simple parallel AC circuits ? Explanation -electrical engineering
  14. Resonance as applicable to simple RLC series circuit? effect on circuit performance
  15. Explain three phase generation of voltage ? electrical engineering
  16. Explain in detail about what is star and delta three phase system ?
  17. Relation between phase voltage & line voltage in case of balanced star connected load
  18. relationship between line current & phase current for delta connected 3 load
  19. Relation between power consumed in a balanced star & delta connection

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