Please elaborate on the concept of time constant, and the role of capacitor in a rectifier

Asked by Gayathri Rajeev | 30th Dec, 2013, 04:56: PM

Expert Answer:

Pls post one query at a time.
A time constant is a measure of the length of time that is required to observe a significant change in the process of interest.
For example, time constant of LR circuit is defined as the time required for current to build up to 63.2% of the maximum current.
Time constant of RC is defined as the time in which charge on the capacitor grows to 63.2% of the maximum value of charge.

Answered by  | 31st Dec, 2013, 12:49: PM

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