An electric field of intensity 4.50 kN/C is applied along the x-axis. Calculate

Question

An electric field of intensity 4.50 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true.
(a) The plane is parallel to the yz-plane.
____N

Explanation / Answer

(a) The plane is parallel to the yz-plane. =>4.5*10^3*0.35*0.7 = 1102.5 N · m2/C (b) The plane is parallel to the xy-plane. =>area perpendicular to electric flux is 0 =>electric flux is 0 (c) The plane contains the y-axis, and its normal makes an angle of 41.0° with the x-axis. =>4.5*10^3*0.35*0.7*cos41 = 832.06 N · m2/C

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