Physics - EMI/AC Question with Solution | TestHub

Impedance, $Z=\sqrt{{\left(X_L\sim X_C\right)}^2+R^2}$ or $Z=\sqrt{{\left(\omega L\sim \frac{1}{\omega C}\right)}^2+R^2}$ Inductive reactance $$X_L=\omega L=70\times 10^3\times 100\times 10^{-6}=7\Omega$$ Capacitance reactance $\begin{array}{rl}{X}_C& =\frac{1}{\omega C}=\frac{1}{70\times 10^3\times 1\times 10^{-6}}\\ & =\frac{1}{7\times 10^{-2}}=\frac{10^2}{7}=\frac{100}{7}\\ \text{ As }{X}_C>X_L& \end{array}$ So, circuit behaves like R-C circuit.