Two wires are made of the same material ...

Two wires are made of the same material and have the same volume. However wire 1 has cross-sectional area A and wire 2 has cross-sectional area 3A. If the length of wire 1 increases by `Deltax` on applying force F, how much force is needed to stretch wire 2 by the same amount?

`F`

`4F`

`6F`

`9F`

Text Solution

Verified by Experts

The correct Answer is:

Volume = constant, `a_(1) l_(1) = a_(2)l_(2), Delta x_(1) = Delta x_(2)`

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