Question:
In an ac circuit, an inductor, a capacitor and a resistor are connected in series with $X_{L}=R=X_{C}$. Impedance of this circuit is :
Correct Option: , 3
Solution:
$\mathrm{Z}=\sqrt{\left(\mathrm{X}_{\mathrm{L}}-\mathrm{X}_{\mathrm{C}}\right)^{2}+\mathrm{R}^{2}}=\mathrm{R} \because \mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}}$
Option (3)
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