Transformers in Series, calculating the current

AI Thread Summary
The discussion revolves around calculating current in a transformer using standard equations like Vs/Vp = Ns/Np. The user is struggling with the calculations, particularly with arriving at the correct primary current, which they consistently find to be 1.6 amps, contrary to their mentor's guidance. They have applied Ohm's law but feel uncertain about their approach, especially regarding the two unknowns in the problem. Assistance is requested to clarify the calculations and resolve the confusion. The user is seeking help to correctly solve the transformer question presented.
joshb
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I have been given the attached question by my mentor.

I have used the standard transformer equations (Vs/Vp=Ns/Np etc.) but I am struggling to work toward the right answer. I am using 4 amps for question A (standard ohms law) but don't think I am tackling this right. As for current in the primary I always seem to come up with 1.6 amps. My mentor has told me this is wrong and I should be looking at the two unknowns. I'm completey stuck!

Can anyone help?
 
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