If the primary coil is energized in a transformer, what happens in the secondary coil if it is connected into a closed circuit?
A) nothing until it too is powered up
B) current flow is induced
C) nothing until the secondary circuit is open
D) nothing until primary coil de-energizes

Question

Quizplus · Accepted Answer

When the primary coil of a transformer is energized, it creates a varying magnetic field. If the secondary coil is connected into a closed circuit, this changing magnetic field induces a current flow in the secondary coil, according to Faraday's law of electromagnetic induction.

If the Primary Coil Is Energized in a Transformer, What