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I think I understand now, thanks a lot!

Hi Rajini, thanks for replying. So I'm just wondering, does the change in magnetic flux through the primary coils cause an induced emf equal to the applied primary voltage through the primary coils themselves as well? Would that counteract the voltage from the primary source?

Hi, I've been a bit confused with how the equation Vp/Vs = Np/Ns came about. From reading a physics textbook, I understand that the voltages came from the emfs ε (primary) and ε (secondary). The primary voltage through the primary coils causes a change in magnetic flux which induces an emf...