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A power transmission line feeds input po...

A power transmission line feeds input power at 2300 V to a step down trnasformer with it primary windings having 4000 turns. What should be the number of turns in the seconday windings in order to get output power at 230 V?

A

300

B

250

C

400

D

450

Text Solution

Verified by Experts

The correct Answer is:
C
Here, `V_(p)=2300V,N_(p)=4000,C_(s)=230V`
Now, `(V_(s))/(V_(p))=(N_(s))/(N_(p))`
`therefore (230)/(2300)=(N_(s))/(4000)`
`N_(s)=(230xx4000)/(2300)=400`
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