Question

The temperature coefficient of resistance of a wire is 0.00125/C.At 300K it’s resistance is 1 ohm. The temperature at which the resistance becomes 2 ohms is

Answer 1

R2=R1(1+αt)

1=R1(1+.03375)as α is in celcius

R1=.96735

2=.96735+1.2091*10^-5t

Answer 2

Answer:

The temperature at which the resistance becomes 2 ohms is 1127 K .

Explanation:

for explanation see the attached photo

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