For a metallic conductor having resistance at temperature

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

For a metallic conductor having resistance R0R_0 at temperature T0T_0, which expression gives its resistance RTR_T at temperature TT? (a) RT=R0 α(T−T0)R_T = R_0\,\alpha (T-T_0) (b) RT=R0 [1−α(T−T0)]R_T = R_0\,[1-\alpha (T-T_0)] (c) RT=R0 [1+α(T−T0)]R_T = R_0\,[1+\alpha (T-T_0)] (d) RT=R0 [1+α(T+T0)]R_T = R_0\,[1+\alpha (T+T_0)]

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