Advertisements
Advertisements
Question
If a wire is stretched to double of its original length, then the strain in the wire is __________.
Options
1
2
3
4
Solution
If a wire is stretched to double of its original length, then the strain in the wire is 1.
APPEARS IN
RELATED QUESTIONS
Consider two wires X and Y. The radius of wire X is 3 times the radius of Y. If they are stretched by the same load then the stress on Y is ___________.
The load-elongation graph of three wires of the same material as shown in the figure. Which of the following wire is the thickest?
Two wires are made of the same material and have the same volume. The area of cross-sections of the first and the second wires are A and 2A respectively. If the length of the first wire is increased by ∆l on applying a force F, how much force is needed to stretch the second wire by the same amount?
The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?
Define strain.
State Hooke’s law of elasticity
A spring balance shows wrong readings after using it for a long time. Why?
Write down the expression for the elastic potential energy of a stretched wire.
A cylinder of length 1.5 m and diameter 4 cm is fixed at one end. A tangential force of 4 × 105 N is applied at the other end. If the rigidity modulus of the cylinder is 6 × 1010 Nm-2 then, calculate the twist produced in the cylinder.
We use the straw to suck soft drinks, why?
