試題詳解

13.The figure shows a Gaussian rectangular structure with sides parallel to the axes and in the electric field =(3.00x+2.00)+4.00+14.0N/C. What is the charge ( C ) enclosed by the structure?

 
(A) 7.91×10^-11,
(B) 9.56×10^-10,
(C) 2.66×10^-9,
(D) 0,
(E) 3.72×10^-8.