Question

Which of the following devices is used to convert different forms of energy into heat energy ?

• A. Ironbox
• B. Heater
• C. Automobile engines
• D. Microphone

Answer 1

Answer: (A), (B)

The correct options are
A Ironbox
B Heater

An ironbox converts electrical energy into heat energy enabling us to press the clothes. A heater converts electrical energy into heat energy to boil water. On the other hand, automobile engines convert heat energy to mechanical energy and microphones convert sound energy to electrical energy.