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Write the dimensional formula for resi...

Write the dimensional formula for
resistivity.

A

`[ML^(2)T^(-2)A^(-2)]`

B

`[ML^(3)T^(-3)A^(-2)]`

C

`[ML^(-2)T^(-2)A^(2)]`

D

`[ML^(2)T^(-2)A^(-3)]`

Text Solution

Verified by Experts

The correct Answer is:
B
`Resistivity=("Resistancexxarea")/("length")`
`=(ML^(2)T^(-3)A^(-2)xxL^(2))/(L)=[ML^(3)T^(-3)A^(-2)]`
which is choice `(b)`.
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