Electrical thumb rule version-1
https://youtu.be/_HLU906gEbI

Drinking RO water basics
https://youtu.be/kSvD4sB3CMs

TDS,TSS,PH in water
https://youtu.be/liKNnnuuV6Y

In this video following topics are explained in Tamil with animation
1.Battery basics-Difference between Primary & Secondary types
2.Battery construction +ve plate lead peroxide, -Ve plate pure lead immersed in H2SO4
3.Battery terminals-Cells are connected internally +ve & -ve(per cell 2 volt)
4.Battery working- charging & Discharging
5.Battery maintenance- Location, termination, Healthiness test
6.Difference between:
Drinking water VS Distilled battery
Maintenance VS maintenance free batter

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