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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSeries AC CircuitsEasy2 minPYQ_2020

PhysicsEasysingle choice

A $20 V$ AC is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is $12 V$ , the voltage across the coil is

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Answer:

Solution:

The voltage across $L R$ combination is given by

$V^{2} = V_{R}^{2} + V_{L}^{2}$

$V_{L} = \sqrt{V^{2} - V_{R}^{2}}$

$V_{L} = \sqrt{400 - 144} = \sqrt{256}$

$V_{L} = 16 V$

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

⏱ 2mℹ️ Source: PYQ_2020

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