A transformer has 100 turns on its primary coil and 500 turns on its secondary coil. If the primary voltage is 120 V, what is the secondary voltage?
Correct: A
Vp/Vs = Np/Ns, where Vp is primary voltage, Vs is secondary voltage, Np is number of primary turns, and Ns is number of secondary turns. Therefore, Vs = Vp * (Ns/Np) = 120 V * (500/100) = 600 V.