Questions
In the primary coil of transformer current and voltage are 3A and 210 volts. In the secondary coil 735V voltage produces. Then ratio of number of turns in secondary coil and primary coil will be
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Correct option is A
nsnp=VsVp=735210=72 .Similar Questions
A transformer connected to 220 volt line shows an output of 2 A at 11000 volt. The efficiency is 100%. The current drawn from the line is
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