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For a transformer, the turns ratio is 3 ...

For a transformer, the turns ratio is 3 and its efficiency is 0.75. The current flowing in the primary coil is 2A and the voltage applied to it is 100 V. Then the voltage and the current flowing in the secondary coild are..............respectively.

A

150 V, 1.5 A

B

300 V, 0.5 A

C

300 V, 1.5 A

D

150 V, 0.5 A

Text Solution

Verified by Experts

The correct Answer is:
B
`N_(S)/N_(P) = 3`
`V_(S)/V_(P) = I_(P)/I_(S) = N_(S)/N_(P)`
`V_(s) = V_(P).N_(S)/N_(P) = 100 xx 3 = 300 V`
`rArr I_(S) = I_(P).N_(P)/N_(S) = 2 xx 1/3 ~~ 0.5 A`
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