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A transformer connected to a 240Vr.m.s has 3000 tu...

A transformer connected to a 240Vr.m.s has 3000 turns in its primary coil and 500 turns in its secondary coil. Calculate the output voltage.

A.

4000V

B.

400V

C.

40V

D.

4V

Correct answer is C

Np=3000turns

Ns=500turns

Ep=240Vr.m.s

Es=?

NsNp=EsEp

5003000=Es240 

Es=240×5003000=40V