Subject :NSO Class : Class 6
The given figure shows a light bulb connected to a cell. Which of the following shows the energy changes that take place when a bulb glows?
AChemical energy → electrical energy → heat energy → light energy
BChemical energy → electrical energy → light energy → heat energy
CElectrical energy → chemical energy → light energy → heat energy
DElectrical energy → chemical energy → heat energy → light energy
Ans 1:
Class : Class 6
Option A is correct
Ans 2:
Class : Class 4
Why exactly is option B wrong? Please explain.