Example: quiz answers
Coulomb
Found 2 free book(s)
Chapter 2 Coulomb’s Law - Massachusetts Institute of ...
web.mit.edu2.2 Coulomb's Law Consider a system of two point charges, and , separated by a distance in vacuum. The force exerted by on is given by Coulomb's law: q1 q2 r q1 q2 12 12 2 ˆ e qq k r F= r G (2.2.1) where ke is the Coulomb constant, and rrˆ = /r G is a unit vector directed from to , as illustrated in Figure 2.2.1(a). q1 q2 (a) (b)
Chapter 4 Gauss’s Law - Massachusetts Institute of ...
web.mit.edurelated by Coulomb’s law: E1 and E2 ∆A1 ∆A2 2 21 2 01 1 i 4 i Q Er E πεrE =⇒ 2 r2 = 1 (4.2.12) The electric flux through ∆A1 on S1 is 11EA⋅∆=E1∆A r r (4.2.13) On the other hand, the electric flux through ∆A2 on S2 is 22 12 22222 122111 21 cos rr EA E AEA rr θ ⎛⎞⎛⎞ ⎝⎠⎝⎠ EA r r 1 (4.2.14)