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  • A transformer has an efficiency of 80%. It is connected to a power input of 5kW at 200V. If the secondary voltage is 250V, the primary and secondary currents are

A transformer has an efficiency of 80%. It is connected to a power input of 5kW at 200V. If the secondary voltage is 250V, the primary and secondary currents are

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Primary current

\\I_p=\frac{5000}{200}=25A\\output \ power=5000\times\frac{80}{100}=4000W\\\\output \ voltage=250V

Secondary current

\\I_s=\frac{4000}{250}=16A

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Safeer PP

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