What is meant by Resonance what are the different types of
resonance and what are uses of them?

Answer Posted / jonathan r. lambert

In electrical circuits, resonance occurs when the inductive
and capacitive reactances are equal and cancel. If the
reactors are in series, the circuits' impedance becomes
minimum and equals only the circuits' resistance. The
circuit current achieves a maximum value.

If the reactors are configured in parallel, often called
a "Tank" circuit, the resulting impedance becomes maximum,
ideally infinite, and the source current passing through
the parallel reactors becomes minimized, ideally zero.
Within the tank circuit however, the current achieves a
maximum value due to the cancelling reactor values.

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