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RLC Circuits and Resonance - Technical MCQs

Q1:

Series RLC voltage or impedance totals must be calculated by:

A subtracting the values

B graphing the angles

C adding vectors

D multiplying the values

ANS:C - adding vectors

Zt = R+j(XL-Xc).
Where represent the angle between inductive and capacitive.

If Xc>XL then angle is -90 degree.

Again if XL<Xc then angle is 90 degree.