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Radiator
Heat transfer by contact is called conduction.
Conduction
because when two objects are brought in contact with each other which are having different temperatures heat flow from higher to lower that is conduction takes place till the temperature of both become equal....
Depends on the material itself(for conduction) or it's surface and the temperature(for radiation) - at very high temperatures(like a lightbulb filament), radiation is far more significant then conduction, but a heatsink in a normal PC is doing to be far more dependant on conduction then radiation...
radiation: the countryside emits the sun's energy back into space, but not completely, just some. but in the city, there are buildings that block and absorb the emitted energy when the ground emits the energy. Which means the city has a higher penis because of the absorbed heat.conduction: it's the same concept. conduction occurs more efficiently when nothing is interrupting the moving air. the countryside is more open, but the city has buildings that block the air flow.
conduction occurs...
Radiator
No. It is an example of radiation. The heat is transferred by microwaves, which are a form of electromagnetic radiation. Conduction occurs when two objects of different temperatures are in contact or when different parts of an object have different temperatures.
Convection I believe. If not conduction. I'd go with convection.
conduction
Heat transfer by contact is called conduction.
Conduction
Conduction
Conduction
Conduction
because when two objects are brought in contact with each other which are having different temperatures heat flow from higher to lower that is conduction takes place till the temperature of both become equal....