A transformer has 90 turns on the primary coil and 175 turns on the secondary coil. If the AC input current is 5 A, the output current is
A) 2.6 A.
B) 9.7 A.
C) 3.5 A.
D) 7.8 A.

Question

Quizplus · Accepted Answer

The transformer's output current can be calculated using the formula $I_2 = \frac{N_1}{N_2} \times I_1$, where $I_2$ is the output current, $N_1$ and $N_2$ are the number of turns on the primary and secondary coils, respectively, and $I_1$ is the input current. Substituting the given values: $I_2 = \frac{90}{175} \times 5 = 2.57$ A, which rounds to 2.6 A.

A Transformer Has 90 Turns on the Primary Coil and 175