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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACTransformerEasy2 minPYQ_2024
PhysicsEasysingle choice

A transformer has an efficiency of80%and works at10 Vand4 kW.If the secondary voltage is240 V,then the current in the secondary coil is:

Options:

Answer:
B
Solution:

Efficiency η=PoutputPinput=ESISEPIP

⇒0.8=240IS4000

⇒IS=3200240=13.33 A

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:Transformer
⏱ 2mℹ️ Source: PYQ_2024

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