Question

the total impedance of a circuit decreases when a capacitor is added in series with L and R . explen why.?​

Answer 1

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Answer 2

Explanation:

In L R circuit impedance Z=under root R^2+XL^2

and when the capacitor is added it forms LCR circuit for which impedance is Z=under root R^2+XL^2-Xc^2 and that's why impedance decreases due to decrease in reactance value