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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACTransformerEasy2 minPYQ_2020

PhysicsEasysingle choice

A low-loss transformer has $230 V$ applied to the primary and gives $4.6 V$ in the secondary. The secondary is connected to a load, which draws $5 A$ of current. The current (in ampere) in the primary is

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Answer:

Solution:

For the transformer

Power output = power input

$E_{s} i_{s} = E_{p} i_{p}$

$\frac{E_{S}}{E_{P}} = \frac{i_{P}}{i_{S}} \Rightarrow i_{P} = \frac{E_{S}}{E_{P}} \times i_{S} = \frac{4.6}{230} \times 5 = 0.1 A$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Transformer

⏱ 2mℹ️ Source: PYQ_2020

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