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List and explain the various types of Sinusoidal Oscillations

List and explain the various types of Sinusoidal Oscillations

Answers

- Sinusoidal electrical oscillations can be of two types:

(i) Damped oscillations
- The electrical oscillations whose amplitude goes on decreasing with time are called damped oscillations. Fig. 6.1 (i) shows waveform of damped electrical oscillations. Obviously, the electrical system in which these oscillations are generated has losses and some energy is lost during each oscillation.
- Further, no means are provided to compensate for the losses and consequently the amplitude of the generated wave decreases gradually. It may be noted that frequency of oscillations remains unchanged since it depends upon the constants of the electrical system.


(ii) Undamped oscillations
- The electrical oscillations whose amplitude remains constant with time are called undamped oscillations. Fig. 6.1 (ii) shows waveform of undamped electrical oscillations.
- Although the electrical system in which these oscillations are being generated has also losses, but now right amount of energy is being supplied to overcome the losses. Consequently, the amplitude of the generated wave remains constant. It should be emphasised that an oscillator is required to produce undamped electrical oscillations for utilising in various electronics equipment.

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Wilfykil answered the question on August 15, 2019 at 09:00

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