6. [1pt] Consider two separate systems, each with four charges of magnitude q ar

Question

6. [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. (For each statement select T True, F False).

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

Explanation / Answer

A) F ( because +q are closure than -q so more effect of +q is there.)

B) T (it present at equal distance from all charges {E=Kq/r^2} r is same and and -q = +q {in numbers})

C) T (same reason as of B)

D) T ( -q = +q {in numbers} and present at equal distance {V=KQ/r}

E) T ( same as D)

F) T (same as D)

G) T (same as B)

H) F ( because + charges are present more close than -q charges so there is a positive potential present)

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