PH-1576

Transformers

Physics · Secondary 4 · Medium · Transformers

An ideal transformer has 200 turns on its primary coil and 800 turns on its secondary coil. The secondary voltage is 120 V. What is the primary voltage?

$30\,\text{V}$
$50\,\text{V}$
$320\,\text{V}$
$480\,\text{V}$

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