Question by baby: A model electric train requires 12 V to operate. If the primary coil of its transformer has 300 windings, how?
please explain!!!!!!
A model electric train requires 12 V to operate. If the primary coil of its transformer has 300 windings, how many windings should the secondary have if the primary is connected to a 120 V household circuit?
Best answer:
Answer by Ryan
30. Turns and voltage are proportional, so if you want to step down voltage by a factor of ten, you step wraps down by a factor of ten.
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