Question

Resistance of a 50m wire in Dhaka (at 20°C) is 25 Ohm. What will be the resistance of the same wire at Moscow? (The temperature of Moscow now-a-days is near to 22°F)​

Answer 1

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Lᴇᴛ R1 be resistance in First case and

temperature be t1.

let at t2 temperature resistance will be r2. .and temperature coefficient of resistance

be alpha.

now Given.

R1= 20ohm

R2 = 25ohm

t1= 500 27°C.

t2= ?.

see picture!!for solution!!....

since T₂ is 625° C hope it helped you!!....

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