Resistance 58091

Does the copper conductor have a resistance of 2.8Ω at 36 ° C. What will be the resistance value after cooling to -22 ° C?

Correct answer:

R2 =  2.1504 Ω

Step-by-step explanation:

t1=36 °C R1=2.8 Ω t2=22 °C  α=4.0 103=0.004 Ω Δ=t2t1=(22)36=58 °C  R2=R1 (1+α Δ)=2.8 (1+0.004 (58))=2.1504 Ω



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