1.

Which of the following units denots the dimensions `ML^2 // Q^2` where Q denots the electric charge ?A. Henry (H)B. `H//m^2`C. Weber (Wb)D. `Wb//m^2`

Answer» Correct Answer - (a)
Henry is unit of self- indcutance (L). From
`e = (L dI)/(dt)`
`L = (edt)/(dI) = ((W//q)dt)/(dI)`
`=[ML^2 T^(-2)]T/(QA) = ([ML^2 T^(-2)]T)/(Q Q//T)`
`i.e., = Henry (H) = ML^2 // Q^2`


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