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Capacitors - Technical MCQs

Q1:

What is this circuit?

mcq7_1040_1.gif

A bandpass filter

B high-pass filter

C low-pass filter

D differentiator

ANS:B - high-pass filter

It is a high pass filter that all we are knowing.

But, it is not a differentiator.
Reason: because for a good differentiator.
1) T(RC time constant) <= 0.1T(fundamental freq)
2) Xc>= 10R.

Here not a single condition is matching with differentiator property.