Which winding is connected to the source?

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Multiple Choice

Which winding is connected to the source?

In a transformer, the winding directly connected to the power supply is the primary winding. When the AC source energizes this winding, it creates a changing magnetic flux in the core, which drives voltage in the other windings through mutual induction. The secondary winding is what provides power to the load, with its voltage determined by the turns ratio. Auxiliary and tertiary windings exist for supplying control circuits, magnetizing current, or auxiliary equipment, but they are not where the main source is connected. So the winding connected to the source is the primary winding.

In a transformer, the winding directly connected to the power supply is the primary winding. When the AC source energizes this winding, it creates a changing magnetic flux in the core, which drives voltage in the other windings through mutual induction. The secondary winding is what provides power to the load, with its voltage determined by the turns ratio. Auxiliary and tertiary windings exist for supplying control circuits, magnetizing current, or auxiliary equipment, but they are not where the main source is connected. So the winding connected to the source is the primary winding.

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