Two isolated copper plates,each of area 0.40 m2,carry opposite charges of magnitude 7.08 × 10-10 C.They are placed opposite each other in parallel alignment,with a spacing of 4.0 cm between them.What is the potential difference between the plates? (ε0 = 8.85 × 10-12 C2/N ∙ m2)
A) 0.40 V
B) 3.0 V
C) 3.2 V
D) 7.6 V
E) 8.0 V
Correct Answer:
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