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A magnetic core is a component made from a ferromagnetic material that is used to enhance the magnetic field in various electrical devices, such as transformers, inductors, magnetic coils, and magnetic speakers. The core provides a path for magnetic flux, thereby increasing the efficiency of the device by reducing magnetic losses and improving performance. ### Key Points About Magnetic Cores: 1. **Material**: Magnetic cores are typically made from materials like iron, ferrite, or other ferromagnetic alloys.