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In a transformer `220` ac voltage is increased to `2200` volts. If the number of turns in the secondary are `2000, then the number of turns in the pri

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In a transformer `220` ac voltage is increased to `2200` volts. If the number of turns in the secondary are `2000, then the number of turns in the primary will be
A. 200
B. 100
C. 50
D. 20
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Correct Answer - A
`(n_(p))/(n_(S))=(e_(p))/(e_(S))`
`therefore n_(p)=(e_(p)*n_(S))/(e_(S))=(220xx2000)/(2200)=200`
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