The potential energy of a 3.5 pC charge separated by 6.2 cm from a 1.6 µC charge is O 1.3 × 10-7 J 8.1 x 10-5 J. O 1.2 x 10-5 J. O 8.1 × 10-7 J. O 1.0 × 10-5 j.
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