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The dimension of 1/2ε₀E², where ε₀ is permittivity of free space and E is electric field, is:
Options
(a) ML²T⁻²
(b) ML⁻¹T⁻²
(c) ML²T⁻¹
(d) MLT⁻¹
Correct Answer:
ML⁻¹T⁻²
Explanation:
1/2 ?￢ﾂﾀE² represents energy density i.e., energy per unit volume.
⇒ [ 1/2 ?￢ﾂﾀE² ] = ML²T⁻² / L³
= ML⁻¹T⁻²
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Eight drops of a liquid of density ρ and each of radius a are falling through air
- Two coils of self inductance 2 mH and 8 mH are placed so close together
- A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas
- A very small circular loop of radius a is initially (at t=0) coplanar and concentric
- If two vectors 2i+3j+k and -4i-6j-λk are parallel to each other, then the value of λ is
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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