Figure 1 -9 -q L 90 a +q +9 +q Figure 2 с The electric potential at c is zero. The electric field at d is zero. The electric field at c is zero. The electric field at a is zero. The electric potential at d is zero. The electric field at b is zero. Submit Answer Tries 0/4 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 d are half way between the lower two charges. Select True or False for the following statements. The electric potential at a is zero. The electric potential at b is zero. Submit Answer Tries 0/4 -9 +q Using the diagram above, find the magnitude of the electric field at point d. DATA: q= 0.750 μC, L= 0.40 m.

Figure 1 -9 -q L 90 a +q +9 +q Figure 2 с The electric potential at c is zero. The electric field at d is zero. The electric field at c is zero. The electric field at a is zero. The electric potential at d is zero. The electric field at b is zero. Submit Answer Tries 0/4 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 d are half way between the lower two charges. Select True or False for the following statements. The electric potential at a is zero. The electric potential at b is zero. Submit Answer Tries 0/4 -9 +q Using the diagram above, find the magnitude of the electric field at point d. DATA: q= 0.750 μC, L= 0.40 m.

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please provide reasoning and diagram as well. Thank you!
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