Question

What kind of energy conversion takes place when water in a bucket gets heated up by an immersion rod?

• A. Heat energy to mechanical energy
  
• B. Heat energy to electrical energy
  
• C. Mechanical energy to heat energy
  
• D. Electrical energy to heat energy
  

Answer 1

The correct option is D Electrical energy to heat energy


An immersion rod is an electrical appliance that converts electrical energy into heat. The heating element of an immersion rod is simply an electrical resistor.
It works on the principle of Joule heating in which an electric current through a resistor converts electrical energy into heat energy. This heat energy makes the water warm, in which the immersion rod is dipped.