Why heating coil of an electric kettle are fixed at the bottom of a kettle?

The heating coil of an electric kettle is fixed at the bottom for several reasons:

1. Efficient heating: Placing the heating coil at the bottom ensures that the heat is directly transferred to the water, resulting in faster and more efficient heating. The heat rises from the bottom, creating convection currents that help distribute the heat evenly throughout the kettle.

2. Safety: By fixing the heating coil at the bottom, it minimizes the risk of accidental contact with the hot coil. This design reduces the chances of burns or injuries when handling the kettle.

3. Stability: Placing the heating coil at the bottom provides stability to the kettle. The weight of the water is evenly distributed over the base, preventing the kettle from tipping over.

4. Easy cleaning: Having the heating coil at the bottom makes it easier to clean the kettle. Since the coil is fixed and not in direct contact with the water, it is less likely to accumulate mineral deposits or other residues, which can be difficult to clean.

Overall, fixing the heating coil at the bottom of an electric kettle ensures efficient heating, safety, stability, and ease of cleaning.