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JEE Main Physics question

PhysicsUnits and MeasurementJEE Main

Let denote the dimensional formula of the permittivity of vacuum. If mass, length, time and electric current, then the dimensions of permittivity are given as . Find the value of .

Answer: 3

Solution

From Coulomb's law, \dfrac{q_1q_2}${4π

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Question ID VK-157564