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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2014
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Q)

A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in the secondary coil is 6 A the voltage across the secondary coil and the current in the primary coil respectively are:


( A ) 450V, 15A
( B ) 450V, 13.5A
( C ) 300V, 15A
( D ) 600V, 15A

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