The resistance of a wire is 5 ohm at 50c and 6 ohm at 100c. The resistance of the wire at 0c will be

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The resistance of a wire is 5 ohm at 50c and 6 ohm at 100c. The resistance of the wire at 0c will be

Rahul Jana 10th Aug, 2019

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Answer (1)

Tanzil Mahmood 10th Aug, 2019

Hi Rahul,

R = R0(1+α(T - T0)

5 = R0(1+α(50) ...(i)

And

6 = R0(1+α(100).....(ii)

Dividing (i) & (ii),

α = 1/200

So, R0 = 4 Ω

So, the Resistance of the wire at 0°C is 4 Ω

Hope it helps!!

Good Luck..!!

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Comments (2)

Rahul Jana

10th Aug, 2019

Thanks for this

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Rahul Jana

10th Aug, 2019

Please can u help me with full calculation

Reply

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