Two negative charges, Q= -4.5 micro coulombs are placed on the x-axis at x= +0.5

ID: 2120293 • Letter: T

Question

Two negative charges, Q= -4.5 micro coulombs are placed on the x-axis at x= +0.5 m and x= -o.5 m.

A) How much energy does it take to assemble these two charges?

B) You place an unkown charge on the y-axis at y= 1 m and find that the electric potential is 0 V at the origin. What is the unknown charge?

C) If you place a -3 micro coulomb charge at the origin, what is the x-component of the force on it from the other three charges?

D) If you place a -3 micro coulomb charge at the origin, what is the y-component of the force on it from the other three charges?

A) potential energy= -kQQ/r where K is 1/4*pi*epsilon.

and r= 1m

Q= -4.5 micro coulomb.

B) charge shoulf be 2 Q , and magnitude postive.

C) as net potential is zero at origin, so there would be no net force acting on -3 micoro coulomb charge.. so F_x and F_y remains zero.

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.