Question
A series $R L C$ circuit has resistance $150 \Omega$ and impedance $250 \Omega$. (a) What's the power factor? (b) If the rms current is $250 \mathrm{~mA}$, what's the power dissipation?
Step 1
Step 1: The power factor of a circuit is given by the formula $\cos \phi = \frac{R}{Z}$, where $R$ is the resistance and $Z$ is the impedance. Show more…
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