If the resistance of a conductor is \( 5 \Omega \) at \( 50^{\circ} \mathrm{C} \), and 7 \( \Ome...
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0If the resistance of a conductor is \( 5 \Omega \) at \( 50^{\circ} \mathrm{C} \), and 7 \( \Omega \) at \( 100^{\circ} \mathrm{C} \), then the mean temperature coefficient of resistance of the material is
(A) \( 0.0088^{\circ} \mathrm{C} \)
(B) \( 0.006 /^{\circ} \mathrm{C} \)
(C) \( 0.004 /{ }^{\circ} \mathrm{C} \)
(D) \( 0.001{ }^{\circ} \mathrm{C} \)
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