Positive charge Q is distributed uniformly along the positive y-axis between y =0 and y= a. A negative point charge-Q is fixed on the negative y-axis at y =-a. y For Q4- Q6 refer to it x + y2 Q4) What is the expression for the electric field created by the point charge on the x-axis for x>0 Eg -Qxi +aj) 47 (x +a Ocj +ai) 47e (x+a A- E, = B- E= (x + a %3D 3/2 Q(xi -aj) 27 (r*+a) C- E, -Q(xi +aj) D-E - 21312 47 E (x +a Q5) What is the expression for the electric potential created by the line of charge on the x-axis for x>0 30 In a+vr +a In a-Vx +a A- V =- B- V = 2nE a 4t E a a+Vx+a -In ar D-V = a-Vr +a In 47Ea 47 E a Q6) What is the x-component of the total electric field on the x-axis for x>0 1 A- E = B- E = 4x e, x(x +a) Vx +a r+a (r+a) C- E = x(x +a*)' D-E, = 4 E Vr +a (x+a)