Multiple Choice
What is the magnitude of a the vertical electric field that will balance the weight of a plastic sphere of mass that has been charged to -3.0 nC? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A) 6.9 × 106 N/C
B) 7.8 × 105 N/C
C) 1.5 × 106 N/C
D) 2.1 × 106 N/C
Correct Answer:
Verified
Correct Answer:
Verified
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