We've seen that voltage can be transformed by either being increased or decreased and that this depends on the number of turns on both the primary and secondary coil. The relationship between primary voltage (Vp), secondary voltage (Vs), the number of turns on the primary coil (Np) and secondary coil (Ns) is given by:
It is also possible to "flip" this equation on its head, which can sometimes be more useful:
Let's see it in action!
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