Physics
razzytazzy
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What is the magnitude of the electric field at a point 0.0075 m from a 0.0035 C charge? 

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jferrufino13

In an electric field force,F= q₁q₂/4πε₀ r²  (coulomb's law)  as we know,F=qE  E=F/q E=q/4πε₀ r² here,r= 0.0075 m        q= 0.0035 C       1/4πε₀  = 9×10⁹         E=  9×10⁹× 0.0035/(0.0075)²           =5.6 ×10¹¹ N/C

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