The impedance of a $\mathrm{R}-\mathrm{C}$ circuit is $\mathrm{Z}_{1}$ for a frequency $f$ and $Z_{2

Question

The impedance of a $\mathrm{R}-\mathrm{C}$ circuit is $\mathrm{Z}_{1}$ for a frequency $f$ and $Z_{2}$ and for frequency 2f. Then $Z_{1} / Z_{2}$ is\

Professor PC Thomas Classes · Answer

(A) $Z_{1}=R \sqrt{1+\left(\frac{X_{C}}{R}ight)^{2}}: Z_{2}=R \sqrt{1+\left(\frac{X_{C}}{2 R}ight)^{2}}$ Find $\mathrm{Z}_{1} / \mathrm{Z}_{2}$\