
A model electric train requires 6 V to operate. When connected to a circuit of 120 households V, a transformer is?
necessary. If the primary coil transformer 240 turns, show that there should be 12 turns in the secondary coil.
PD through seconday coil / coil through primarry PD = number of turns in the secondary / Number of turns in the primary. Therefore, a N / 240 = 6 / 120 N = [6 / 120] * 240 = 12 turns. Verified. ============================================
Bachmann 4-CEP electric MU train