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A transformer has 100 turns in the prima...

A transformer has `100` turns in the primary coil and carries `8A` current. If input power is one kilowatt, the number of turns required in the secondary coil to have `500V` output will be

A

100

B

200

C

400

D

300

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(P)=I_(P)*e_(P)`
`e_(P)=(P_(P))/(I_(P))=(1xx10^(3))/(8)`
`n_(S)=(e_(S))/(e_(P))xxn_(P)=(500xx100xx8)/(1000)=400`
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