What do you mean by convectional current.
Answers
Answer:
convection currents is a natural process of heat transfer involving the movement of energy and heat from one place to another. We can exemplify it by observing that we feel hotter when we place our hands above a campfire. This happens due to convection currents.
Explanation:
Convection currents are flowing fluid that is moving because there is a temperature or density difference within the material.
Because particles within a solid are fixed in place, convection currents are seen only in gases and liquids. A temperature difference leads to an energy transfer from an area of higher energy to one of lower energy.
Convection is a heat transfer process. When currents are produced, matter is moved from one location to another. So this is also a mass transfer process.
Convection that occurs naturally is called natural convection or free convection. If a fluid is circulated using a fan or a pump, it's called forced convection. The cell formed by convection currents is called a convection cell or Bénard cell.
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