Question

Q.10 If a body loses 20billion electrons find net force on the body which is negatively charged and have a charge of -2coloumb and is at a distance of 10cm? Q.11 If 12 charges are placed in a circle like a clock from 1 to 12. If two consecutive charges are positive and after that two consecutive are negative and it all started from. Is it possible to make a system in which charges are placed by the given conditions of two consecutive should be positive and negative and electric field at the centre is zero. If possible then explain, if not possible then also explain? Q.12 if three charges 9,9,9 are placed in line having at a distance r from each other. is it possible that electric field on that line will ever be zero. if possible then explain it and if not possible then also explain it with reason. Q.13 If two neutral bodies are rubbed with each other, one gains positive and other gains negative charge and became electrified, if by some mistake both bodies placed next to each other and eventually they touch each other. Do they still have the property to attract other small bodies. Explain it.​

Answer 1

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