# Need help with this transformer circuit

I need some help with this circuit. I have simplified it in three steps. The task is to find the current I. The values to e(t), Z1, Z2, Z3, Z4, and the turn ration N1/N2 are known. I'm not quite sure if I have even done the transformer conversion correctly. But my main question is the current I.

Z4 = Z1 + Z3

• @relayman357 Stop answering questions in the comment section. – pipe Nov 23 '20 at 9:50
• @relayman357, it's \\$ for MathJAX on EE.SE. – Transistor Nov 23 '20 at 10:14
• @Transistor Thank you sir. Sorry – relayman357 Nov 23 '20 at 10:18

Looks good so far. Now solve for primary current E/Z4 and then find the secondary current, I, by turns ratio.

Remember that current reference arrow going into polarity dot on primary means current arrow out of dot on secondary. In other words, draw your primary current reference arrow coming up and out of your voltage source - this current will be in phase with I as you have assigned it’s arrow in your picture.