Question

I wish to use a step up transformer to turn an initial RMS AC voltage of 100 V into a final RMS AC voltage of 200 V. What is the ratio of the number of turns in the primary to the secondary

Answer 1

1:2

Step-by-step explanation:

It is given that,

Initial RMS AC voltage is 100 V and final RMS AC voltage is 200 V.

We need to find the ratio of the number of turns in the primary to the secondary for step up transformer.

For a transformer,
`(V_1)/(V_2)=(N_1)/(N_2)`

So,

`(N_1)/(N_2)=(100)/(200)\\\\(N_1)/(N_2)=(1)/(2)`

So, the ratio of the number of turns in the primary to the secondary is 1:2.