Depends on how many fittings you will be using. If we're talking 1/2" - 1" and less than 20 fittings the volume will be changed neglagibly. If we're talking larger diameter pipe or lots of fittings you could see a noticible change in volume but not a lot. Unless the system has thousands of feet of pipe and hundreds of fittings then you would see a signigicant change.
yes,joule is a heating reversible effect .
how would you show the heating effect of a current?
No, heating and cooling does not effect the strength of a glass
By heating the density is lowered.
by the radiation in the filament it throw out heat . this way the bulb demonstrates the heating effect. :D
Heating effect
No, because heating matter does not effect the mass.
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The heating effect of electric current was discovered by James Prescott Joule in the mid-19th century. Joule's experiments showed that the temperature of a conductor increases when an electric current passes through it.
Infrared radiation from the sun produces a heating effect on the Earth's surface. This radiation is responsible for warming the planet and heating objects on the surface.
Heating effect of electric current is undesirable in electronic devices where overheating can lead to damage or malfunction. It is also undesirable in electrical transmission lines where energy loss due to heating reduces efficiency. Additionally, in some industrial processes where precise temperature control is required, excess heating can be a problem.
we wont use copper as a heating element because it expands on heating and it can effect the thermostat