Question

What are convection currents? How are they formed?

Answer 1

HEY MATE HERE IS YOUR ANSWER:-

Q) WHAT ARE CONVECTION CURRENT?

Convection currents form when you have a liquid or gas have regions with a difference in temperature and there is a heat source feeding the system. Colder areas are going to want to fall and hotter regions want to rise.

As the hotter regions raise they lose energy (heat) and begin to fall and the now warm regions rise. This happens in a circular pattern.

Q)HOW ARE THEY FORMED?

so in metals where the charge carries ( electrone) are negative , conventional current are in opposite direction as the electrons. In a vacuum a beam of ions or electrons may be formed .

Answer 2

Hi mate

Convection currents:

Convection currents form because a heated fluid expands, becoming less dense. The less-dense heated fluid rises away from the heat source. As it rises, it pulls cooler fluid down to replace it. This fluid in turn is heated, rises and pulls down more cool fluid.

Hope it helps you...