Two spheres, X and Y, are 4 m apart. A charge of 2Q is distributed over X and a charge of Q is distributed of sphere Y. 20 The magnitude of the electrostatic force on X is: Oka) the same as that on Y b) 2 times that on Y c) one half that on Y d) 4 times that on Y e) one quarter that on Y

Question 2 The figure below shows three point charges that lie in the x,y plane Determine the magnitude and dırection of the net electrostatic force on q1, if q1 = +4 µC, q2 = -6 µC and q3 = -5 µC 93 0 15 im 73° 0 10 m 92

SAQ: A charge is placed at the midpoint of the line joining the system of two equal charges +2Q each. The nature and magnitude of the charge that is placed for the equilibrium of the system is a. a) -Q/2 b. b) Q/4 c. c) -Q/4 d. d) none of the above SAQ: Two charges 6 mC, -2 mCare separated by a distance of1 m in air. The distance of the point between the two charges for zero electric potential is a. a) 0.25 m b. b) 0.67 m c. c) 0.75 m

An Iron ion (Fe+2, with charge of +2e) is a particle with radius of about 1.4 x10-10 meters. What is the magnitude of the electric force between two Iron ions located 1.6 x10-8 meters apart? A.) 1.2 x 10 -8 N B.) 9.0 x 10 -13 N C.) 4.7 x 10 -8 N D.) 3.6 x 10 -12 N E.) 1.4 x 10 26 N

What is the force between 21.0×10 see a charge is separated by 2.0 M