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Which is not a difference between active and passive filter?

Posted: Thu Jul 14, 2022 12:08 pm
by answerhappygod
a) A passive filter does not use op-amp while an active filter uses an op-amp
b) A passive filter can’t use an inductor while an active filter can
c) A passive filter performs only filtering while an active filter amplifies too
d) A passive filter is used at audio frequency and an active at radio frequency