A transformer has a primary coil of 100 turns and a secondary coil of 500 turns. If the voltage in the primary coil is 12 V, what is the voltage in the secondary coil?
Correct: C
The voltage in the secondary coil is given by V2 = (N2 / N1) * V1, where N1 is the number of turns in the primary coil, N2 is the number of turns in the secondary coil, and V1 is the voltage in the primary coil. Substituting the given values, we get V2 = (500 / 100) * 12 V = 5 * 12 V = 60 V.