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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.

3
2
5
4

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Electrolysis and Storage Batteries
When a lead-acid battery is in fully charged condition, the color of its positive plate is

none of the listed here
dark grey
brown
dark brown

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Electrolysis and Storage Batteries
48 ampere-hour capacity would deliver a current of

6 amperes for 8 hours
48 amperes for 1 hour
8 amperes for 6 hours
24 amperes for 2 hours

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Electrolysis and Storage Batteries
The active materials of a nickel-iron battery are

21% solution of kOH
nickel hydroxide
powdered iron and its oxide
all of these

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Electrolysis and Storage Batteries
Chargmg of sulphated battery produces ____ heat.

more
very little
no
less

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Electrolysis and Storage Batteries
Internal resistance of a cell is due to

all of the listed here
electrode resistance
resistance of electrolyte
surface contact resistance between electrode and electrolyte

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