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Question
Find the ratio of primary and secondary currents in terms of turn ratio in an ideal transformer.
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Solution
According to law of conservation of energy,
Input electrical power = Output electrical power
EpIp = EsIs
`:.E_s/E_p=I_p/I_s`
`I_p/I_s=E_s/E_p=N_s/N_p`
`=>I_p/I_s=n`
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