A 40.0-μFcapacitor is connected across a 60.0 Hz generator. An inductor is then connected in parallel with the capacitor. What is the value of the inductance if the rms currents in the inductor and capacitor are equal?

Respuesta :

Answer:

The value of the inductance is 175.9 mH.

Explanation:

Given that,

Capacitor [tex]C= 40.0\ \muF[/tex]

Frequency = 60.0 Hz

The inductor and capacitor is connected in parallel, the voltage across each of these elements is the same.

We have,

[tex]V_{L}=V_{C}[/tex]

Using ohm's law

[tex]I_{rms}\times X_{L}=I_{rms}\times X_{C}[/tex]

[tex]X_{L}=X_{C}[/tex]

[tex]2\pi f L=\dfrac{1}{2\pi f C}[/tex]

[tex]L=\dfrac{1}{4\pi^2\times f^2\times C}[/tex]

Put the value into the formula

[tex]L=\dfrac{1}{4\times\pi^2\times60.0^2\times40\times10^{-6}}[/tex]

[tex]L=0.1759\ H[/tex]

[tex]L=175.9\times10^{-3}\ H[/tex]

[tex]L=175.9\ mH[/tex]

Hence, The value of the inductance is 175.9 mH.