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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACTransformerEasy2 minPYQ_2023

PhysicsEasysingle choice

A generator at a utility company produces $100 A$ of current at $4000 V$ . The voltage is stepped up to $2, 40, 000 V$ by a transformer before it is sent on a high voltage transmission line. The current in transmission line is

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Solution:

For a transformer, $V_{p} I_{p} = V_{s} I_{s} \Rightarrow I_{s} = \frac{V _{p} I _{p}}{V _{s}} = \frac{4000 \times 100}{240000} A = 1.67 A$

Stream:VITEEESubject:PhysicsTopic:EMI/ACSubtopic:Transformer

⏱ 2mℹ️ Source: PYQ_2023

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