Question 333: Current Electricity

Question

Consider four conducting materials copper,
tungsten, mercury and aluminium with
resistivity $\rho $
C
, $\rho $
T
, $\rho $
M
and $\rho $
A
respectively. Then :

Accepted Answer

ÃÂ
M
= 98 ÃÂ 10
Ã¢ÂÂ8
ÃÂ
A
= 2.80 ÃÂ 10
Ã¢ÂÂ8
ÃÂ
C
= 1.72 ÃÂ 10
Ã¢ÂÂ8
ÃÂ
T
= 5.65 ÃÂ 10
Ã¢ÂÂ8
$ 	herefore $ $ho $
M
>  $ho $
T
> $ho $
A
>  $ho $
C

Answer

$\rho $
C
>  $\rho $
A
>  $\rho $
T

Answer

$\rho $
M
>  $\rho $
A
>  $\rho $
C

Answer

$\rho $
A
>  $\rho $
T
>  $\rho $
C

Answer

$\rho $
A
>  $\rho $
M
>  $\rho $
C

Current Electricity

Consider four conducting materials copper, tungsten, mercury and aluminium with resistivity \rho C , \rho T , \rho M and \rho A respectively. Then :

Choose the correct answer: