The temperature of a wire of length $1 \, m$ and area of cross-section $1 \, cm^2$ is increased from $0^\circ C$ to $100^\circ C$. If the rod is not allowed to increase in length,the force required will be $(\alpha = 10^{-5} /^\circ C$ and $Y = 10^{11} \, N/m^2)$.

  • A
    $10^3 \, N$
  • B
    $10^4 \, N$
  • C
    $10^5 \, N$
  • D
    $10^9 \, N$

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