Page 122 - Physics - XII

Observations
Eff ect of Separation of Plates Immersed in Electrolyte on Internal Resistance

E.M.F. of voltaic cell, E = _____ V
Temp = _____ °C
Area of electrode, A = _____ cm 2

S. Separation R (Ω) Balancing length (cm) Internal Resistance
No. between the plates Open circuit Closed circuit l
l
(cm) (K and K open) l (K and K close) l r= R× 0 l ()
2 3 0 2 3
1.
2.
3.

4.

Eff ect of Common Area of Plates Immersed in Electrolyte on Internal Resistance

E.M.F. of voltaic cell = _____ V
Distance between plates = _____ cm
Temperature = _____ °C

S. Length of the R (Ω) Balancing length (cm) Internal Resistance
No. plates immersed l
l
in electrolyte Open circuit Closed circuit r= R× 0 ()
(cm) (K and K open) l 0 (K and K close) l l
3
2
3
2
1.
2.
3.
4.

Eff ect of Concentration (c) of Electrolyte on Internal Resistance
Distance between plates = _____ cm

Area of plates = _____ cm 2
Temperature = _____ °C

S. Concentration (c) of R (Ω) Balancing length (cm) Internal Resistance
No. electrolytes Open circuit Closed circuit l
l
0
(mol L ) (K and K open) l (K and K close) l r= R× l ()
–1
2 3 0 2 3
1.
2.
3.
4.

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