AP EAMCET · PHYSICS · Electrostatics
Two positive point charges of and are placed apart in air. The work done to bring them closer is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Work done = Increase in potential energy =Kq1q21r2-1r1 =9×109×10×10-6×12×10-616-110×102 =7.2 J Hence, the correct option is 8.1 J.
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