Two identical metallic spheres A and b each carrying a charge of q C are fixed .They repel each other with a force of 2×10-⁵ N. Another identical unchanged sphere C is made to touch A, moved to touch B , and placed halfway between A and B. what is the electric charge and the electric force (in N) on each sphere in terms of q?
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Answer:
Answer is 2
Explanation:
Two metallic sphere a and b carrying charge half half and force 2 ×10^-5
F1=k(1/2)(1/2)/r2
F1=k/4r2 equ.1
Metallic spheres a is half and c is one so
F2=k/2rsquare equ.2
equ1/equ2
2×10^-5/F2=k/4r^2×2r^2/k
F2=4×10^-5
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