What are coils in a toaster?

The coils in a toaster are heating elements that are used to heat the appliance and toast the bread. The coils are usually made of a resistive metal such as nichrome (usually 80% nickel and 20% chromium), which has a high resistance to the flow of electricity. When an electrical current is applied to the coils, they heat up and transfer the heat to the bread. The coils are usually located in slots on the inside of the toaster near the slots for the bread.

The coils in a toaster are usually connected in series, which means that the current has to flow through all of the coils in order to complete the circuit. If one of the coils breaks, the circuit is broken and the toaster will not work.

The temperature of the coils is controlled by a thermostat. When the thermostat reaches the desired temperature, it will turn off the power to the coils and the toaster will stop heating.