Final answer:
A generator converts fuel to electrical power efficiently by using the principles of electromagnetism. The fuel is burned to produce mechanical energy, which is then transferred to the generator to create an electric current.
Step-by-step explanation:
A generator converts fuel to electrical power efficiently by using the principles of electromagnetism. The fuel, such as oil, coal, or gas, is burned to produce mechanical energy in the form of steam or rotating turbines. This mechanical energy is then transferred to the generator, which consists of magnets and coils of wire. As the magnets spin, they create a changing magnetic field that induces an electric current in the wire coils, converting mechanical energy to electrical energy.
The efficiency of a generator is determined by the amount of mechanical energy it can convert to electrical energy. Factors that affect the efficiency include the design and materials used, as well as any losses in the conversion process.