A model-train transformer plugs into 120-v ac and draws


A model-train transformer plugs into 120-V ac and draws 0.41A while supplying 7.8A to the train.

What voltage is present across the tracks? Assume 100% efficiency.

Vs=_____V

Is the transformer step-up or step-down?

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Physics: A model-train transformer plugs into 120-v ac and draws
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