What determines the emf between the two metals placed in an electrolyte? |
|||
a) |
Relative position of metals in the electro chemical series |
b) |
Distance between them |
c) |
Strength of electrolyte |
d) |
Nature of electrolyte |
What determines the emf between the two metals placed in an electrolyte? |
|||
a) |
Relative position of metals in the electro chemical series |
b) |
Distance between them |
c) |
Strength of electrolyte |
d) |
Nature of electrolyte |
(a) The relative position of metals in the electro chemical series determines the emf between the two metals placed in an electrolyte. |
is a potentiometer wire of length
and its resistance is
It is connected in series with a resistance
and a battery of e.m.f.
and negligible internal resistance. If a source of unknown e.m.f.
is balanced by
length of the potentiometer wire, the value of
is
a) |
|
b) |
|
c) |
|
d) |
|
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