A transformer is used in a converter so that a traveler can use a hair dryer made in the U.S. in their hotel room in Germany. The standard voltage in the U.S. is 120 V. The voltage in Germany is 220 V. The ratio of the number of turns must be
A) 0.545.
B) 1.833.
C) 20.
D) 100.
E) 340.

Question

Quizplus · Accepted Answer

The ratio of the number of turns in the transformer must be equal to the ratio of the voltages, so it is 220/120 = 1.833.

A Transformer Is Used in a Converter So That a Traveler