Question

Multiple-choice questions
i) if conductors a and b are connected in series and i-v graph is plotted for the
combination, its slope would be:
a) less than that of a b) more than that of a.
c) between a and b. d) more than that of d
ii) if conductors c and d are connected in parallel and i-v graph is plotted for the
combination, its slope would be:
a) lesser than that of a. b) more than that of d.
c) between c and d. d) between b and c
iii) which one of the following relations is true for these conductors:
a) ra
>rb>rc>rd
b) ra

Answer 1

Below are given the answer to the questions.

Explanation:

(i) If conductors a and b are connected in series and i-v graph is plotted for the combination, its slope would be more than that of a.

The reason is that resistance in series combination is more than that of parallel combination.

(ii) If conductors c and d are connected in parallel and i-v graph is plotted for the  combination, its slope would be less than that of a.

Because in parallel combination the resistance is less than the series combination.

Answer 2

Answer:

i) (b) more than that of b.

ii) (a) lesser than that of a

iii) (a) ra>rb>rc>rd

Explanation:

i)The slope of b will be less than that of a.

ii) The slope of a will be less than that of b.

iii) It means a​ is lower because r is smaller .

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