Question

Сила тока в сетевом шнуре и спирали электроплиьки одна и та же, почему же спираль раскаляется а шнур остаётся холодным?​

Answer 1

Ответ:

Сопротивление спирали нагревателя значительно больше соединительных поводов.

Объяснение:

Answer 2

Explanation of the Phenomenon

The phenomenon of the electric coil heating up while the power cord remains cool can be explained by the differences in their respective functions and materials.

Electric Coil (Spiral) The electric coil, or spiral, in an electric appliance, such as a kettle, heats up due to the resistance of the material it is made of. When an electric current passes through the coil, the resistance of the material causes it to heat up. This is known as Joule heating, where the electric energy is converted into heat energy due to the resistance of the material.

Power Cord On the other hand, the power cord is designed to conduct electricity from the power source to the appliance. It is typically made of materials with very low resistance, such as copper or aluminum, which allows the electric current to flow through it with minimal energy loss. As a result, the power cord does not heat up significantly because of its low resistance and the efficient conduction of electricity.

Difference in Material and Design

The key difference lies in the material and design of the electric coil and the power cord. The electric coil is intentionally designed to have a higher resistance in order to generate heat, while the power cord is designed to have low resistance to efficiently conduct electricity without significant energy loss.

Conclusion

In summary, the electric coil heats up while the power cord remains cool due to the differences in their respective functions, materials, and designs. The electric coil is designed to generate heat through resistance, while the power cord is designed to efficiently conduct electricity with minimal energy loss.