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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSeries AC CircuitsEasy2 minPYQ_2020

PhysicsEasysingle choice

In series LCR circuit $R = 18 Ω$ and impedance is $33 Ω$ . An RMS voltage of $220 V$ is applied across the circuit. The true power consumed in the AC circuit is

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Answer:

Solution:

$P = e_{r m s} . i_{r m s} . \cos ϕ$

$= e_{r m s} . \frac{e_{r m s}}{Z} . \frac{R}{Z}$

$= \frac{220 \times 220 \times 18}{33 \times 33}$

$= \frac{20 \times 20 \times 18}{3 \times 3}$

$= 20 \times 20 \times 2$

$= 800 W$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Series AC Circuits

⏱ 2mℹ️ Source: PYQ_2020

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