Question

A conductor has resistance 5 ohm. what will be the conductunce​

Answer 1

Answer:

We know that R

T

=R

0

(1+αT) where R

T

= resistance at temp T, R

0

= resistance at temp T=0

o

C and α= temperature coefficient of resistance.

Here, 5=R

0

(1+α.50)...(1)

and 7=R

0

(1+α.100)...(2)

(2)/(1)⇒

5

7

=

1+50α

1+100α

7+350α=5+500α

150α=2⇒α=2/150=0.013/

o

C

Explanation:

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