A transformer only works with which type of current?

split

direct

alternating

magnetic

Answer would be: alternating. There is no electrical connection between the two coils. These only work if alternating current is supplied to the main coil. If DC was supplied, there would be no flow of current in the minor coil.

alternating

Explanation:

The transformer works on the principle of electromagnetic induction.

When a changing magnetic flux is linked with the coil, then an induced emf is produced.

When an alternating current is give to the primary coil, the magnetic flux linked with the coil changes, which linked to the secondary coil of the transformer and hence an induced emf is developed.