Question

A transformer has 100 turns on primary coil and 300 turn on secondary coil. If 20V Ac is applied to the primary coil, what would be the secondary voltage?

Answer 1

the secondary voltage is 60 V.

Step-by-step explanation:

Given;

number of turns on the primary coil, Np = 100 turns

number of turns on the secondary coil, Ns = 300 turns

voltage supply in the primary coil, Vp = 20 V

let the secondary voltage = Vs

Apply the following transformer equation to determine the secondary voltage;

`(V_s)/(V_p) =(N_s)/(N_p) \\\\V_s = (V_p * N_s)/(N_p)\\\\V_s = (20 * 300)/(100) \\\\V_s = 60 \ V`

Therefore, the secondary voltage is 60 V.