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What is the main cause of heat loss in a normal thermos flask?
The main heat loss in a good thermos flask, is due to heat conducted through the material. (Glass or Stainless Steel). There should be little heat lost through the vacuum of the flask.
96 grand Cherokee heater work with key off?
The source of heat for the system is water/coolant from the radiator circulating through a heater core under the dash. Without the engine running and water circulating, there won't be any heat in the passenger compartment. There is residual heat after turning the engine off, but that won't last long. If the blower fan does not shut off, the resistor has failed.
Why is a ray defined?
Ray means each of the lines in which light and heat seem to stream from the sun or a body which is luminous, or pass through an opening which is often small.
Why would antifreeze leak from the exterior driverside firewall 2002 Mazda mpv?
Because your Vehicle's heater derives heat from hot coolant that is cycled out of the engine block. Basically, a coolant line is routed from the engine, through the firewall, and through radiating fins in front of the blower motor's output. The heat that comes out of your car's heater is actually heat energy absorbed from the engine block into the coolant, and then the heat energy is absorbed from the coolant when it goes through the *heater core* (radiating fins) and absorbed through the radiating fins and heats the air that is pushed through by the blower motor (resulting in hot air). The coolant after it goes through the radiating fins of your car's heater core is then pumped back through the firewall and to the radiator where it is cooled much more. The coincidence is that when you go to your vehicle on a 45 degree or colder day, and start the engine, turn on the heater, and it blows cold air: it's because your car's engine hasn't warmed up yet. Once it idles for 20 minutes, or 10 minutes of driving, the heater is crispy hot and feels good. One of the coolant lines going through the firewall has a leak.... STOPLEAK might fix it. STOPLEAK also likes to freeze up old thermostats, so be careful. Do you mean the leak occurr outside the vehicle, not inside? Are you sure it's not just the condensate from the AC from the drain tube? if it's antifreeze, then you have a leak. The lines for the rear heater are notorious for rusting out.
Explain using the atomic particles what is happening when a wire heats up as current flows through it?
Electrical current is made up of protons and neutrons. Voltage itself doesn't do much, but when combined with amperage that's when things happen. Amperage is the force which makes the voltage flow. More amperage means more force, which means more friction on the molecular level. Friction causes heat which makes the wire warm.
What are insulators of heat?
The substances that don't conduct heat through them are called as 'insulators of heat'. Eg - Plastic, Wood etc.
Are insulators good conductor of heat?
Insulators are the complete opposite of conductors. Insulators insulate the heat, but conductors let it pass straight through.
What are heat conductors and heat insulators?
the substances that allow heat to pass through them easily are called heat conductors. the substances that do not allow heat to pass through them easily are called heat insulators. ruchi
What materials do not let heat travel through are called?
Insulators- do not let heat through
What allows heat energy to pass through it?
Heat conductors allow heat energy to pass through; heat insulators do not.
What is the materials called through which heat and electricity flow poorly?
insulators...
Differences between conductors and insulators?
Conductors let energy (such as electricity and heat) flow through them easily while insulators do not.
Why is an insulator never a good conductor?
Because insulators are the opposite of conductors and therefore electricity and heat do not pass through good insulators.
What are thermal insulators?
A thermal insulator slows or stops the passage of heat through it.
What materials don't allow heat to pass through?
Thermal insulators don't.
What are three things that do not conduct heat?
Nothing does not conduct heat. If you are asking for three insulators: a coat, rubber, and plastic.
What do you call substances that will not let thermal heat pass through them?
thermal insulator
