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  • I need help with this, Which of the following units denotes the dimensions ML2/Q2, where Q denotes the electric charge?

Which of the following units denotes the dimensions ML2/Q2,   where Q denotes the electric charge?

Option 1)

weber (Wb)

 Option 2)

Wb/m2
Option 3)

henry (H)

 Option 4)

H/m2

Answers (2)

best_answer

As we learnt in

Co-efficent of self induction (L) -

ML^{2}T^{-2}A^{-2}

- wherein

henry

 

 

[ML^{2}Q^{-2}]=[ML^{2}A^{-2}T^{-2}]

[Wb]=[ML^{2}T^{-2}A^{-1}]

\left[\frac{Wb}{m^{2}} \right ]=[MT^{-2}A^{-1}]

[henry]=[ML^{2}T^{-2}A^{-2}]

\left [\frac{H}{m^{2}} \right ]=[MT^{-2}A^{-2}]

Obviously henry (H) has dimensions \frac{ML^{2}}{Q^{2}}


Option 1)

weber (Wb)

This is an incorrect option.

Option 2)

Wb/m2

This is an incorrect option.

Option 3)

henry (H)

This is the correct option.

Option 4)

H/m2

This is an incorrect option.

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