9. [1pt] Consider two separate systems, each with four charges of magnitude q ar

Question

9. [1pt]
Consider two separate systems, each with four charges of magnitude q arranged in a square of length L as shown above. Points a and c are in the center of their squares while points b and dare half way between the lower two charges. (Give ALL correct answers, i.e., B, AC, BCD...)

A) The electric field at d is zero.
B) The electric field at c is zero.
C) The electric potential at a is zero.
D) The electric potential at b is zero.
E) The electric field at b is zero.
F) The electric field at a is zero.
G) The electric potential at c is zero.
H) The electric potential at d is zero.

Explanation / Answer

(A) False one component due to negative charge will add up along vertical direction

(B) False

(C) Correct

(D) Correct

(E) False

(F) Correct

(G) Correct

(H) False

CDFG

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