Two conductors have the same resistance at 0° C but their temperature coefficients of resistance are α ₁ and α ₂. The respective temperature coefficients of their series and parallel combinations are nearly

(D) (α ₁ + α ₂)/2, (α ₁ + α ₂)/2

(A) (α ₁ + α ₂)/2, α ₁ + α ₂

(B) α ₁ + α ₂, (α ₁ + α ₂)/2

(C) α ₁ + α ₂, (α ₁α ₂)/(α ₁ + α ₂)

Current Electricity: JEE Main 2010 Physics question

JEE Main 2010 · Annual, Paper 1 · Q6416

JEE Main 2010Annual, Paper 1PhysicsMediumCurrent Electricity150× since 2002

Two conductors have the same resistance at

{0^ \circ }C

but their temperature coefficients of resistance are

{\alpha _1}

and

{\alpha _2}.

The respective temperature coefficients of their series and parallel combinations are nearly

JEE Main 2010 · Annual, Paper 1 · Q6416

JEE Main 2010Annual, Paper 1PhysicsMediumCurrent Electricity150× since 2002

Two conductors have the same resistance at

{0^ \circ }C

but their temperature coefficients of resistance are

{\alpha _1}

and

{\alpha _2}.

The respective temperature coefficients of their series and parallel combinations are nearly