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V=3x+4y. Find F=? on q=2C​

Answer»

10 NExplanation:Given : V ( x , y ) = 3 x + 4 y We know : E = - d V / d rPartially differentiating we get :E_x =  3 E_y = 4 Now net ELECTRIC field : E_net = √ ( 3² + 4² )E_net = 5 N C⁻¹We are ASKED to find Force : We know : F = q E_netF = 5 × 2 N= > F = 10 NTherefore , force on 2 C is 10 N.



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