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A step up transformer connected to a 220...

A step up transformer connected to a `220V AC` line is to supply `22 kV` for a neon sign in secondary circuit. In primary circuit a fuse wire is connected which is to blow when the current in the secondary circuit exceeds `10mA`. The turn ratio of the transformer is

A

50

B

100

C

150

D

200

Text Solution

Verified by Experts

The correct Answer is:
B
`K=(n_(S))/(n_(P))=(e_(S))/(e_(P))=(22xx10^(3))/(220)=100`
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