Electric Circuits
The plates of lead acid storage battery are most likely to be short circuited if

 the battery charged too slowly.
 sediment collect at the bottom of the battery.
 the electrolyte evaporates.
 too much water is added.

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Electric Circuits
Two electric bulbs have transparent filament of same thickness. It one of them gives 60 W and other gives 100 W, then-

 60 W lamp filament has shorter length.
 60 W lamp filament has longer length.
 60 W and 100 W lamp filament have equal length.
 100 W lamp filament has longer length.

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