Question

The continuous movement of a fluid when heated is called :

• A. convectional current
• B. conduction current
  
• C. electric current
  
• D. magnetic current
  

Answer 1

The correct option is A convectional current

Convection is a process of transfer of heat through a fluid (liquid or gas) caused by molecular motion. When the particles of the medium get heated and move up and the cooler particles come down to take their place, then they get heated and move up, and a continuous movement of fluid takes place as long as the source of heat is there, then its called a convectional current.