Two conductors have the same resistances at 0^{\circ} {\C} but their temperature coefficients of resistance are \alpha_1 and \alpha_2. The respective temperature coefficients for their series and parallel combinations are : [31-Jan-2024 Shift 1]

Correct Answer is : α1+α22,α1+α22

\alpha_1+\alpha_2, \frac{\alpha_1+\alpha_2}{2}

\frac{\alpha_1+\alpha_2}{2}, \frac{\alpha_1+\alpha_2}{2}

\alpha_1+\alpha_2, \frac{\alpha_1 \alpha_2}{\alpha_1+\alpha_2}

\frac{\alpha_1+\alpha_2}{2}, \alpha_1+\alpha_2

Current Electricity Part 4

Section: Physics

Question : 73 of 73

Marks: +1, -0

Two conductors have the same resistances at 0∘C but their temperature coefficients of resistance are α1 and α2. The respective temperature coefficients for their series and parallel combinations are :

[31-Jan-2024 Shift 1]

α1+α2,‌
α1+α2
2
‌
α1+α2
2
,‌
α1+α2
2
α1+α2,‌
α1α2
α1+α2
‌
α1+α2
2
,α1+α2

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