Question

For the circuit below, V1 has rms voltage of Vrms=10V. The turn ratio of the primary to secondary side of the transformer is 1:10. If R1 has a value of 20Ω, what is the value of the rms current on the secondary side? Enter your answer in units of Amps.

Answer 1

voltage I assume = 100 volts
i = V/R = 100/20

Answer 2

R1 = (N1/N2)^2 * R2 = 20.
(1/10)^2 * R2 = 20,
R2 = 2000 Ohms.

V2 = 10 * V1 = 10 * 10 = 100 Volts.

I2 = V2/R2 = 100/2000 = 0.05A.