Which symbol represents a transformer in circuit diagrams?

Which symbol represents a transformer in circuit diagrams?

• A. Thermistor Symbol
• B. Transformer Symbol
• C. Resistor Symbol
• D. Open Switch Symbol

Answer: (B)

A transformer is shown with two coil symbols placed near each other and a core between them. That core between the windings represents the magnetic coupling that lets energy transfer from one winding to the other. In diagrams this two-winding-with-a-core depiction instantly signals the transformer’s function, unlike other symbols. A resistor is drawn as a zigzag or rectangle, a thermistor resembles a resistor with a special mark, and an open switch shows two separated contacts. So, the symbol with two inductive windings and a core uniquely represents a transformer.

A transformer is shown with two coil symbols placed near each other and a core between them. That core between the windings represents the magnetic coupling that lets energy transfer from one winding to the other. In diagrams this two-winding-with-a-core depiction instantly signals the transformer’s function, unlike other symbols. A resistor is drawn as a zigzag or rectangle, a thermistor resembles a resistor with a special mark, and an open switch shows two separated contacts. So, the symbol with two inductive windings and a core uniquely represents a transformer.