Item NG035002: The heating coils on an electric stove give off energy in the form of electromagnetic radiation at all temperatures, not just when they are hot.


When do the heating coils on an electric stove give off energy in the form of electromagnetic radiation?

  1. Only when they are too hot to touch
  2. Only when they are so hot that they are glowing
  3. The coils give off energy in the form of electromagnetic radiation at all temperatures.
  4. The coils do not give off energy in the form of electromagnetic radiation at any temperature.