Question 1:

-211} 3' +113 7' \"\"\"\"\"\"\" 'f i : 3- cm L _____________ 41 -3Q 4 cm +2Q Four point charges are located at the corners of a rectangle as shown in the gure above. Take Q = 8 1210. Find the resultant force on the following. taking into account the units: a.2=cal::l+i:w msui:l+i:lm X A B 2 cm 4 cm Three point charges lie on a straight line, as shown in the figure above. The charges on A, B and C are 4 AC, -2 C and 6 AC, respectively. Find the resultant force exerted on: a) charge A: 120 0 jN b) charge B: + jN c) charge C it iNy (m) B 1 A -3 -2 -1 1 2 x (m) Two point charges, A = -2Q and B = 2 Q are located at the positions shown in the figure above. a) What is the force on a charge +q at the origin? jkQqN b) Where would you place a point charge +4 Q such that the net force on q is zero? (z, y) =