Subject :NSO Class : Class 5
Which of the following appliances work by converting electrical energy into heat energy and are used to keep our surroundings warm?
AP and Q only
BQ only
CP, Q, R and S
DS only
Ans 1:
Class : Class 6
but others also produce heat energy?
Ans 2:
Class : Class 7
It will be option D.
It will be D as it can be understood from the pictures that S is a room heater which is run by electric. Heat comes out of it. It is therefore used to keep our surroundings warm.
Thank you .
Ans 3:
Class : Class 7