A circular surface with a radius of 0.068 m is exposed to a uniform electric field of magnitude 1.43×10^{4} N/C. The electric flux during the surface is 60 N·m^{2}/C. What is the angle among the direction of the electric field and the normal to the surface?

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Direction of the electric field and the normal to surface : A circular surface with a radius of 0.068 m is exposed to a uniform electric field of magnitude 1.43×104 N/C. The electric flux during the surface is 60 N·m2/C. What is the angle among the direction of the electric field and the normal to the surface.. |

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