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Question

The dimension of B22μ0, where B is magnetic field and μ0 is the magnetic permeability of vacuum, is

A
ML1T2
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B
ML2T1
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C
MLT2
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D
ML2T2
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Solution

The correct option is A ML1T2
As we know,
The quantity B22μ0 is the energy density of magnetic field.

B22μ0=EV= Energy per unit volume.

Therefore,

[B22μ0]=[ML2T2L3]=ML1T2

Final Answer: (𝑎)

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