Question

Electric geyser
Generator​

Answer 1

Explanation:

electric geyser:-

Chances are high that you have an electric geyser at home, to heat up water. ... The principle on which the geyser works is simply the conversion of electrical energy into heat through the use of heating elements to raise the temperature of water through conduction of the heat to the water.

generator:-

machine that converts one form of energy into another, especially mechanical energy into electrical energy, as a dynamo, or electrical energy into sound, as an acoustic generator.