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The magnitude of magnetic force per unit length between two parallel wire having currents I1, I2 and placed at distance d apart is given byand the magnitude of electric force between two charges Q1 and Q2 placed at distance r apart is given byThe electric resistance of medium depends upon permeability (μ) and permitivity (ε) as given belowR ∝ (μ)a (ε)b |
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Answer» The magnitude of magnetic force per unit length between two parallel wire having currents I1, I2 and placed at distance d apart is given by and the magnitude of electric force between two charges Q1 and Q2 placed at distance r apart is given by The electric resistance of medium depends upon permeability (μ) and permitivity (ε) as given below R ∝ (μ)a (ε)b |
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