Model Train Electric Transformers
Posted on Saturday, December 10th, 2005 at 10:28 pm
A model electric train requires 6 V to operate. When connected to a 120 V household circuit, a transformer is?
needed. If the primary coil of the transformer has 240 windings, show that there should be 12 turns in the secondary coil.
P.D across seconday coil / P.D across primarry coil =
Number of turns in the secondary / Number of turns in the primary.
Therfore,
N /240 = 6 /120
N = [6 /120]*240 = 12 turns.
Verified .
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