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Step 1:
\Find the parallel imepdance.
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is in parallel to
.

is in series with
.


In any network,
at resonance.


Compare the imaginary terms.
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Therefore, 
\
\
From (a): 
is in parallel to
.

is in series with
and
.



Find the current.
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Total current in the circuit at resonance is 
\
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