In the following 'I' refers to current a...

In the following `'I'` refers to current and other symbols have their usual meaning. Chosse the option that corresponds to the dimensions of electrical conductivity:

A

`M^(-1)L^(-3)T^(3)I^(2)`

B

`M^(-1)L^(3)T^(3)I`

C

`ML^(-3)T^(-3)I^(2)`

D

`M^(-1)L^(-3)T^(3)I`

Verified by Experts

The correct Answer is:

A

`J=sigmaE`
`sigma=J/E=(I^(1)L^(-2))/((M^(1)L^(1)T^(-2))/(I^(1)T^(1))`
`sigma=M^(-1)L^(-3)T^(3)I^(2)`

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