An inductor stores energy in a magnetic field when current flows. It resists sudden current changes and is used in filters, motors, relays, and power circuits.
Concept illustration. Check the component datasheet before wiring.
Try it yourself
Change an input. See what follows.
A simplified learning model. Values describe the model, not a connected robot.
Working Principle
An inductor stores energy in a magnetic field when current flows. It resists sudden current changes and is used in filters, motors, relays, and power circuits.
Step by Step
Current enters a coil of wire.
A magnetic field forms around the coil.
Changing current creates opposing voltage.
Coils appear in motors and electromagnets.
Concept illustration; component appearance and scale are simplified.
Practical learning notes
Key idea
An inductor stores energy in a magnetic field and resists sudden current change. Motors and coils behave inductively.
Use in robot
Motor windings create voltage spikes when switched. Driver ICs and protection paths handle this back EMF.
Safe wiring
Do not connect bare coils directly to Arduino pins. Use a driver and protection diode where required.
Classroom check
Discuss why motors can reset Arduino when power wiring is weak or noisy.
robodatech.