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Two charges q1 and q2 are placed 30 cm apart, as shown in the figure. A third charge q3 is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is q34πϵ0k, where k is
201136_1f1d89ee42624f758620de31c22ae33f.png
  1. 8q1
  2. 6q1
  3. 8q2
  4. 6q2

A
6q2
B
6q1
C
8q2
D
8q1
Solution
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