is the lines on the thermal coupler and pilot light for a hot water heater supposed to get hot
At pilot light, where pilot light flame goes directly onto thermo coupler.
It is the thin copper line coming out of the bottom of the control valve and running to the pilot light. Should follow the tube coming out of the bottom of the control valve that supplies gas to the pilot light.
Yes ….Your dryer, like many hot water heaters and gas ranges has a device called a "thermal coupler" This device relies on the heat from a pilot light to keep it on while there is power to the thermal relay. Now, If the thermal coupler fails or if the pilot light goes out, The relay shuts the gas off at the valve to prevent gas from filling the house. The difference between the range, heater and dryer is that the dryer has the safety built in to disable the gas for total power failure. The range and heater can still run with out electricity.
Thermocouple? It is what keeps the pilot light lit. It is a small tube that runs from the pilot light to the control valve. The tube is made from two types of metal that when heated produce a small electrical current that keeps the gas valve open. Thermocouple goes bad the pilot light goes out and no gas can get into the house.
light and thermal energy
Thermal energy is simply heat. Light a fire.
light
Because the light form the bulb produces heat witch produes thermal energy.
For a black objects or black body, the light is absorb to the black body not going through. The absorbed light is transformed to thermal energy inside the object.
Thermal energy is not light. It is heat! Energy of heat and temperature of matter (more heat=more thermal energy=more movement of molecules) Temperature measures movement of molecules
thermal energy
it is electrical to radiant and thermal I'm not sure about that answer i think it's electrical to light (useful energy) and thermal (which is the wasted energy)