Question

The temperature coefficient of resistance of a wire is 0.00125 per degree celcius. It's resistance at 300K is 1 ohm. What will be it's resistance at 2 ohm?

Answer 1

Answer:

you might be asking the temp.

∆R = R × alpha × ∆T

1 = 1 × 0.00125× (T-300)

T = 800+300= 1100 K

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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