Uniform Electric Fields: 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? (?0 = 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
Answer: E
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