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RLC Circuits and Resonance

Q1:

What is the impedance of the circuit in the given circuit?

A
125.7 omega.gif

B
297.6 omega.gif

C
370.1 omega.gif

D
423.3 omega.gif

ANS:A -

125.7 omega.gif

Correct equation for impedance in an RLC series circuit is:

Z = Square root (R^2+(Xl-Xc)^2).

Using this equation after getting both Xl and Xc will give you 370. 1 ohms as the answer.



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