Which symbol represents a motor?

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Multiple Choice

Which symbol represents a motor?

In schematics, a motor is depicted by a circle with the letter M inside. This labeling quickly identifies an active device that converts electrical energy into motion, regardless of the motor type. The other symbols represent different components: a diode is drawn as a triangle pointing to a line, used to allow current in one direction; a resistor is shown as a zigzag line (or a rectangle in some standards), used to restrict current; a transformer is shown with two inductors and their magnetic coupling, used to transfer energy between circuits. Since those shapes correspond to diodes, resistors, and transformers, they are not motors. So the circle with M inside is the motor symbol.

In schematics, a motor is depicted by a circle with the letter M inside. This labeling quickly identifies an active device that converts electrical energy into motion, regardless of the motor type.

The other symbols represent different components: a diode is drawn as a triangle pointing to a line, used to allow current in one direction; a resistor is shown as a zigzag line (or a rectangle in some standards), used to restrict current; a transformer is shown with two inductors and their magnetic coupling, used to transfer energy between circuits. Since those shapes correspond to diodes, resistors, and transformers, they are not motors.

So the circle with M inside is the motor symbol.

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