Question

what is the dimensional formula of resistance

Answer 1

Resistance is the property of a conductor which opposes or resist the flow of electrons through the electricity conducting wire.

Its SI unit is Ohm (Π).
R = V / I
and V = W / Q
therefore R = W / QI
W = ML2T-T
Q = AT
I = A
Hence by substitution we get R = ML2T-3 A-2

I think you should go through the Meritnation site for this formula.

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Answer 2

Resistance = M L² T ⁻³ A⁻²