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  4. A step-up transformer operates on 220 V line and supplies 2.2 A. The ratio of primary and secondary winding is 11: 50. The output voltage in the secondary is

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Q. A step-up transformer operates on $220 \,V$ line and supplies $2.2\, A.$ The ratio of primary and secondary winding is $11 : 50$. The output voltage in the secondary is

Alternating Current

Solution:

$\frac{N_{P}}{N_{S}}=\frac{V_{p}}{V_{S}}$
$V_{S}=\frac{N_{S} V_{P}}{N_{P}}$
$=\frac{50}{11}(220)$
$=1000\, V$