STATEMENT - 1: The temperature dependence of resistance is usually given as R=R_ a (1+m t) . The resistance of a wire changes from 100 Ω to 150 Ω when its temperature is increased from 27 "C to 227…

Question

STATEMENT - 1: The temperature dependence of resistance is usually given as \(R=R_{a}(1+m \Delta t)\). The resistance of a wire changes from 100 Ω to 150 Ω when its temperature is increased from 27\(\text { "C }\) to 227\(\text { "C }\). This implies that \(\text { II }\)\(=2.5 \times 10^{-3} / \mathrm{f}^{9} \mathrm{c}\).

STATEMENT - 2: \(R=R_{a}(1+m \Delta t)\) is valid only when the change in the temperature Δt is small and \(\Delta R=\left[R-R_{a}\right] \ll R_{a}\).

Accepted Answer

(C) Statement - 1 is True, Statement - 2 is True; Statement - 2 is NOT a correct explanation for Statement - 1

STATEMENT - 1: The temperature dependence of resistance is usually given as R=R_ a (1+m…

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