Four charges are arranged at the corners of a square as shownin the figure. Q 1

Question

Four charges are arranged at the corners of a square as shownin the figure. Q1 is at (-L/2,L/2), Q2 is at(L/2,L/2), point a is at the origin andQ1=Q2=-Q3=-Q4. Which ofthe following statements correctly describe the electric field Eand the potential at points a,b and c? (Give ALL correct answers,i.e., B, AC, BCD...) A) The magnitude of the E field at b is greater than at c.
B) The E field at c is perpendicular to the x axis.
C) The potential at c is zero.
D) The E field at b is zero.
E) The potential at c is greater(more positive) than the potentialat b.
F) The E field at a points towards c.
G) a,b, and c each lie on a different equipotential surface. On the same note....

Explanation / Answer

2nd part: H, C, B, F are all true

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