Science, asked by kavita8369275301, 1 month ago

A piece of platinum wire has resistance 2.5 Ω and 3 Ω at 0⁰ C and 80⁰ C respectively, the temperature coefficient of resistance is_______ *.​

Answers

Answered by Anonymous
0

Explanation:

R

28

o

c

=2.5

R

100

o

c

=2.9

ΔR=αθR

28

o

c

2.9−2.5=α×(100−28)×2.5

α=2.22×10

−3

°C

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