Physics › Section Q · Electromagnetic induction and AC circuits › Topic Q.5
Inductance, RL circuits, and AC circuits
A coil resists any change in the current through it, just as a mass resists changes in its velocity. That property, inductance, combines with resistance and capacitance to decide how circuits respond to switching and to alternating current, and it is how a radio picks out one station.
In this topic
- Coils that oppose change
- Self-inductance and stored energy
- Worked example: switching off an inductor
- RL circuits
- Worked example: an RL circuit switching on
- Reactance
- Impedance and resonance
- Power factor
- Worked example: a series RLC circuit
- Common mistakes to avoid
- Key takeaways
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