Understanding Transformer Principles

What is the basic principle behind the operation of a transformer?

• Capacitance storage

• The basic principle behind the operation of a transformer is electromagnetic induction.

• Mechanical leverage

• Thermal conduction

How does electromagnetic induction play a role in transformer functionality?

• Transformers only work with mechanical energy transfer.

• Electromagnetic induction is irrelevant to voltage changes.

• Transformers operate solely on direct current.

• Electromagnetic induction allows transformers to transfer electrical energy between coils via a changing magnetic field, enabling voltage transformation.

What are the primary components of a transformer and their functions?

• Transformer core, electrical circuit, and switch

• Input winding, output winding, and casing

• The primary components of a transformer are the primary winding, secondary winding, and core.

• Primary coil, secondary coil, and insulator

Explain the relationship between primary and secondary coils in a transformer.

• The secondary coil generates its own magnetic field independent of the primary coil.

• The primary coil only powers the secondary coil without any magnetic interaction.

• The primary coil creates a magnetic field that induces voltage in the secondary coil, with the voltage ratio determined by the turns ratio.

• The voltage in the primary coil is always higher than in the secondary coil.

What factors affect the efficiency of a transformer?

• Core material quality, winding resistance, load conditions, frequency of operation, and losses (copper and iron losses) affect transformer efficiency.

• Type of insulation used

• Transformer size and shape

• Ambient temperature variations