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| 1. |
B2 The dimensions of where B is magnetic field and on 2μο is the magnetic permeability of vacuum, is: |
| Answer» CORRECT option isAML −1 T −2 2μ 0 B 2 is the energy density in magnetic field [Energy density] = [Volume][Energy] [Energy]=[Force]×[displacement][volume]=[displacement] 3 [Energy density]= [displacement] 3 [force]×[displacement] = [L 3 ][MLT −2 ]×[L] [L 3 ]]ML 2 T −2 ] =[ML −1 T −2 ]∴[ 2μ 0 B 2 ]=[ML −1 T −2 ]Option (A) is correct. | |