Asked by dallasboy
Which is true of a step-down transformer but not a step-up transformer?
The core is made of copper and the coils are made of iron.
The core is made of iron and the coils are made of copper.
The primary winding has fewer coils than the secondary winding.
The primary winding has more coils than the secondary winding.
All Answers 1
Answered by
GPT-5 mini
AI
The primary winding has more coils than the secondary winding.
Reason: A step-down transformer reduces voltage, so Vp > Vs and by the turns ratio Vp/Vs = Np/Ns, therefore Np > Ns.
Reason: A step-down transformer reduces voltage, so Vp > Vs and by the turns ratio Vp/Vs = Np/Ns, therefore Np > Ns.
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