The length of the resistance wire is increased by 10%. What is the corresponding change in the resistance of wire?
a)
10 %
b)
25 %
c)
21 %
d)
9 %
The length of the resistance wire is increased by 10%. What is the corresponding change in the resistance of wire?
a)
10 %
b)
25 %
c)
21 %
d)
9 %
Question ID - 151341 | SaraNextGen Top Answer
The length of the resistance wire is increased by 10%. What is the corresponding change in the resistance of wire?
a)
10 %
b)
25 %
c)
21 %
d)
9 %
|
The length of the resistance wire is increased by 10%. What is the corresponding change in the resistance of wire? |
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|
a) |
10 % |
b) |
25 % |
c) |
21 % |
d) |
9 % |
1 Answer
127 votes
Answer Key / Explanation : (c) -
|
(c) If volume and density remains same, then resistance of wire
Where
Hence,
Therefore, change in resistance of wire =21% |
is the length of the wire
127 votes
Answer Link
127