Write characteristic feature of heat every transfer
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In heat transfer, there are three medium of transporting heat. Conduction, convection and radiation. Conduction : happens in all kinds of medium( solid, liquid, gas). This happens when particles of a body vibrates, collides and they exchange energy (in the form of heat).
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Conduction : the process by which heat or electricity is directly transmitted through the material of a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Convection: is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature. Warm air is less dense than cold air, and so convection currents can form in the presence of a temperature gradient.
Radiation: the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
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Convection: is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature. Warm air is less dense than cold air, and so convection currents can form in the presence of a temperature gradient.
Radiation: the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
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