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In a transformer, number of turns in the...

In a transformer, number of turns in the primary coil are 140 and that in the secondry coil are 280. If current i primary coil is 4A, then that in the secondary coil is

A

`4` A

B

`2` A

C

`6` A

D

`10` A

Text Solution

Verified by Experts

The correct Answer is:
B
`N_(S)/N_(P)=i_(P)/I_(S)rArri_(S)=4xx140/280=2A`
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