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 `120V` and the current flowing in it is `10A`. The voltage and the current in the secondary are

Options

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

Answer

A

Explanation

`(N_(s))/(N_(p))=(V_(s))/(V_(p))implies(200)/(100)=(V_(s))/(120)impliesV_(s)=240V`
Also `(V_(s))/(V_(p))=(i_(p))/(i_(s))implies(240)/(120)=(10)/(i_(s))implies5A`