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If the length of wire is (100.0 cm) and ...

If the length of wire is `(100.0 cm) and radius of wire as measured from screw gauge is (1.00mm) then the specific resistance of wire material is .

A

`13.35 xx 10^(-6)Omegam`

B

`13.4 xx 10^(-5)Omega-m`

C

`13.352 xx 10^(-6) Omega-m`

D

`16.5 xx 10^(-6)Omegam`

Text Solution

Verified by Experts

From observation table `R = 4.25 Omega`
`rho = ((R)pir^(2))/(l)`
`=(4.25xx3.14xx(1.00)^(2)xx10^(-6))/((100.0xx10^(-2)))`
`=13.3xx10^(-6)Omega-m` .
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