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2 nd Year : Unit 2.1 ( Current Electricity ) - Current Electricity

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Two resistances R₁ and R₂ are made of different materials. The temperature coefficient of resistance of material R₁ is α and that of material R₂ is-β . The resistance of the series combination of R₁ and R₂ will not change with temperature if R₁/R₂ is equal to

A. α / β

B. (α + β)(α - β)

C. (α² + β²) / αβ

D. β / α

E. None of the above

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Correct choice: D

Explanation:

None

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Eamcet Physics 2 nd Year : Unit 2.1 ( Current Electricity ) - Current Electricity

Eamcet Physics
2 nd Year : Unit 2.1 ( Current Electricity ) - Current Electricity