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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACTransformerEasy2 minPYQ_2023

PhysicsEasysingle choice

A $12 V, 60 W$ lamp is connected to the secondary of a step down transformer, whose primary is connected to ac mains of $220 V$ . Assuming the transformer to be ideal, what is the current in the primary winding?NEET 2023 (All India)

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Answer:

Solution:

For an ideal transformer,
${(P o w e r)}_{i n p u t} = {(P o w e r)}_{o u t p u t} \Rightarrow V_{P} I_{P} = {(P o w e r)}_{o u t p u t} \Rightarrow I_{P} = \frac{60}{220} \approx 0.27 A$

Stream:NEETSubject:PhysicsTopic:EMI/ACSubtopic:Transformer

⏱ 2mℹ️ Source: PYQ_2023

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