Question

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Find Dimensions .....

Answer 1

We know that magnetic field due to a wire is

B=µI/2πr

⇒B/µ=I/2πr

⇒B²/µ² =I²/4π²r²

⇒B²/µ =µI²/4π²r²

⇒dimension of B²/µ = dimension of µI²/4π²r²

⇒dimension of B²/µ = [MLT^-2A^-2][A²] / [L²]

⇒dimension of B²/µ =[ML^-1T^-2]

Answer 2

Hope that this answer will help you