Question

A force of 200 N is applied at one end of a wire of length 2 m and having area of cross-section {{10}^{-2}}\,c{{m}^{2}}
. The other end of the wire is rigidly fixed. If coefficient of linear expansion of the wire \alpha =8\times {{10}^{-6}}/{}^\circ C
and Young's modulus Y=2.2\times {{10}^{11}}\,N/{{m}^{2}}
and its temperature is increased by 5?C, then the increase in the tension of the wire will be
A) 4.2 N B) 4.4 N C) 2.4 N D) 8.8 N

Answer 1

Hello Friend...

The answer of u r question is...

Option.C

Thank you...