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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 7
Why exactly is option B wrong? Please explain.

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