Two conducting spheres of radii 5cm and 10 cm are given a charge of 15 microfarad each . After connecting the spheres by a copper wire ,the charge on the smaller sphere is equal to ________
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Explanation:Surface charge density on the 15cm sphere will be greater than that 5cm sphere.
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Answer:
- Two sphere A and B
- Charge on each =15 microC
- Total charge =30 microC
- A=radius(5cm) and charge (q)
- B=radius (10cm )and charge (30-q)
Va=Vb
Kq/5=k(30-q)/10
2q=30-q
q=10 microC
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