Question

In an ideal transformer, the turns ratio is `N_p/N_s = 1/2`. The ratio V_s : V_p is equal to (the symbols carry their usual meaning):

Options

• 1 : 1

• 1 : 4

• 1 : 2

• 2 : 1

Answer 1

2 : 1

Explanation:

For an ideal transformer:

`N_p/N_s = V_p/V_s`

⇒ `1/2 = V_p/V_s`

⇒ `V_s/V_p = 2/1`

So, V_s : V_p = 2 : 1