Question

how is the induced current in a secondary coil related to current in a primary coil​

Answer 1

When a transformer is working:

A primary voltage drives an alternating current through the primary coil.

The primary coil current produces a magnetic field, which changes as the current changes.

The iron core increases the strength of the magnetic field.

The magnetic field passes through (or cuts) the secondary coil.

The changing magnetic field induces a changing potential difference in the secondary coil.

The induced potential difference produces an alternating current in the external circuit.

Answer 2

The induced current in a secondary coil related to current in a primary coil​:

• The induced current from the primary and secondary coil due to influence of magnetic flux.
• The primary coil induces the magnetic field which is under the change once the current changes, the iron core later increases the "strength of the magnetic field".
• The magnetic field passes to the secondary coil and hence activating the coils inducing the changes in potential difference.
• Hence in this way induced current in a secondary coil related to current in a primary coil.

To know more:

How is the induced current in a secondary coil related to current in a primary coil ?

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