Hello everyone, I finally finished the chapter and now I'm going to attempt to do some problems. Well the first problem says: A surface has the are vector A = (2[itex]\hat i + 3\hat j[/itex]m^2. What is the flux of a uniform electric field through it if the field is (a) E = 4[itex]\hat iN/C[/itex] (b) [itex] E = 4\hat k[/itex]. The answer for (a) is 8 Nm^2/C (b) 0. The answer is 8 for the first one because well (4)(2)...the j component isn't used at all because why? Also b is 0 because k isn't in the same vector as i or j, is that right or am i getting lucky?