Question

If the length of the conductor is doubled and area of cross section is halved the resistance of the conductor ..............................
(2 Points)
4 times increases
4 times decreaes
constant
1/2 times increases

Answer 1

Answer:

resistance is directly propotional to length and inversely proportional to area

so when the length doubles, the resistance doubles

and when the area is halved, the resistance doubles again

so the resistance increases by 2*2, i.e. four times overall

so the answer is 4 times increases

Explanation:

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