The primary winding of a transformer has 100 turns and its secondary winding has 200 turns. The primary is connected to an ac supply of 120 V and the current flowing in it is 10 A. The voltage and the current in the secondary are

Options

A. 240 V, 5 A
B. 240 V, 10 A
C. 60 V, 20 A
D. 120 V, 20 A

Answer

A

Explanation

`V_(S)/V_(P)=N_(S)/N_(P)rArrV_(S)/120=2000/100rArrV_(S)=240` Volt
`N_(S)/N_(P)=I_(P)/I_(S)rArrI_(S)=10/2=5A`.