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3 years ago

In an RC parallel circuit, E T = 240 V, R = 1000 Ω, and X C = 1500 Ω. What is the apparent power?

Engineering

1 answer:

denis-greek [22]3 years ago

5 0

Answer:

69.23VA

Explanation:

$Z=R//Z_{c}=\left ( \frac{1}{R}+\frac{1}{Z_{c}} \right )^{-1}\\ R=1000\Omega\\ X_{c}=1500\Omega\\ Z=R//Z_{c}=\left ( \frac{1}{1000}+\frac{1}{-j1500} \right )^{-1}=832,05\angle-33,69\Omega$

Like is an parallel circuit, we can calculate across the voltage and impedance

$S=V.I=\frac{V^2}{Z} \\ S=\frac{240^2}{832,05}\LARGE S=69.23VA$

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3 years ago

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