Electrical Engineering › Section M · Transformers and polyphase systems › Topic M.1
Mutual inductance
Place one coil near another and a changing current in the first induces a voltage in the second, with no wire between them. That shared flux, measured by mutual inductance, is the principle behind every transformer.
In this topic
- One coil talking to another
- Flux that links both coils
- The coefficient of coupling
- Defining mutual inductance
- M from the two self-inductances
- Worked example: current changing in the primary
- Worked example: flux changing in the core
- Sinusoidal currents and mutual reactance
- Where mutual inductance shows up
- Common mistakes to avoid
- Key takeaways
This topic is part of Wuanberri Pro. Checking your access…