Question

why is the cooling unit of a refrigerator made at the top​

Answer 1

Why is the cooling unit of a refrigerator made at the top? This is based on the principle of convection currents. What happens is that due to the cooling, the air becomes denser and moves downward. This creates a partial vacuum above, which is replaced by the warmer air, which also gets cooled by the unit.

Answer 2

It is based on the principle of the convection current . What happens is that due to air cooling , the air becomes denser and moves downward . This creates a partial vaccum above , which is replaced by the warmer air which also gets cooled by the unit.

Hope it help u.

Pls mark as brainlist.