Q7. Four point-charges are placed at the corners of a square, as shown in Figure 2. What is the magnitude of the net electric field at the center of the square? Take q = 1.0 μC and a = 2.0 cm. -q a a A) 1.3×108 N/C B) 6.4×10' N/C C) 2.5×108 N/C D) 1.8×108 N/C E) zero +q ^ a +q
Q7. Four point-charges are placed at the corners of a square, as shown in Figure 2. What is the magnitude of the net electric field at the center of the square? Take q = 1.0 μC and a = 2.0 cm. -q a a A) 1.3×108 N/C B) 6.4×10' N/C C) 2.5×108 N/C D) 1.8×108 N/C E) zero +q ^ a +q
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Transcribed Image Text:Q7. Four point-charges are placed at the corners of a square, as shown in Figure 2. What is the
magnitude of the net electric field at the center of the square? Take q = 1.0 µC and a = 2.0 cm.
- q
I
-q
---->
A) 1.3x108 N/C
B) 6.4x10' N/C
C) 2.5x108 N/C
D) 1.8×108 N/C
E) zero
+q
+
↑
a
I
I
+q
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