General › G5 Electrical Principles › G5C01
G5C01
What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?
Pick an answer to check it.
Answer: C. Mutual inductance
The changing magnetic field from the primary winding passes through the secondary winding and induces a voltage there. This linking of the two coils by magnetism is called mutual inductance.
Tip: Transformers work by mutual inductance.