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KCET2013PhysicsUnits and Dimensions

Which one of the following is not correct?

Options

  1. ADimensional formula of thermal conductivity (K) is M¹ L¹ T⁻³ K⁻¹
  2. BDimensional formula of potential (V) is M¹ L² T³ A⁻¹
  3. CDimensional formula of permeability of free space ( ₀ ) is M¹ L¹ T⁻² A⁻²
  4. DNone of the above

Correct answer

B. Dimensional formula of potential (V) is M¹ L² T³ A⁻¹

Step-by-step solution

Dimensional formula of potential [V]= [ M ¹ ~L ² ~T ⁻³ ~A ⁻¹ ] Dimensional formula of [R C]= [ M ⁰ ~L ⁰ ~T ¹ ] .

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