Answer:
(a) Resistance of a conductor
depends on the following factors
(i) Resistance of a conductor is
directly proportional of the length of the conductor (1/2)
(ii) Resistance of a conductor
is inversely proportional to the area of cross-section.
(1)
(b) (i) The overall resistance
is increased in a series combination.
Highest
equivalent resistance
(1)
(ii) The overall resistance is
reduced in a parallel combination.
Lowest
equivalent resistance
24
(1)
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