A soldering gun contains a transformer that lowers the 120 V to a few volts. It\

Question

A soldering gun contains a transformer that lowers the 120 V to a few volts. It's possible to have a current of 150 A in the tip of the soldering iron even though the outlet has a circuit breaker that permits no more than 15 A .

Explain how this is possible. Which is true?

A. A transformer that has fewer turns at the secondary coil than at the primary coil produces a greater current and a smaller voltage. B. A transformer that has fewer turns at the secondary coil than at the primary coil produces a smaller current and a greater voltage. C. A transformer that has fewer turns at the secondary coil than at the primary coil produces a smaller current and a smaller voltage. D. A transformer that has fewer turns at the secondary coil than at the primary coil produces a greater current and a greater voltage.

Explanation / Answer

a transformer that has fewer turns in the secondary reduces the output voltage and increases the output current. so a transformer that has fewer turns at the secondary coil than at the primary coil produces a greater current and a smaller voltage. so option A is correct.

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