Wire of length L and radius r extends by l under force F: extension when length, radius and force are scaled
The same question, asked 3 times: 25 Jul 2022*, 15 Apr 2023*, 29 Jan 2024. Every wording below, oldest first.
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Question 1
25 Jul 2022
23A wire of length and radius is clamped rigidly at one end. When the other end of the wire is pulled by a force , its length increases by . Another wire of the same material of length and radius is pulled by a force under same conditions. The increase in length of this wire is cm.Question 2
15 Apr 2023
12A wire of length ' ' and radius ' ' is clamped rigidly at one end. When the other end of the wire is pulled by a force , its length increases by ' '. Another wire of same material of length ' ' and radius ' ' is pulled by a force ' '. Then the increase in its length will be:Tap an option to check your answer.
Question 3
29 Jan 2024
103A wire of length and radius is clamped at one end. If its other end is pulled by a force F, its length increases by . If the radius of the wire and the applied force both are reduced to half of their original values keeping original length constant, the increase in length will become.Tap an option to check your answer.