xxhizors said:A charged hollow sphere with surface charge density [itex]\sigma[/itex] & radius R is cut into two hemispheres...certainly the hemispheres with equal charges on them would repel each other...Now a force is applied on both the hemispheres to align them again as the original sphere..i shall be highly thankful if u could assist me finding that force applied on each hemisphere...its not a homework assignment...just a question i saw in a book...!
A charged hollow sphere is a spherical object with a hollow interior that has a net electric charge. This means that the total amount of positive and negative charges within the sphere are not equal, resulting in an overall charge.
A charged hollow sphere can be created by either transferring electrons to or from the surface of a neutral hollow sphere, or by charging a non-conductive hollow sphere through induction using a charged object.
When a charged hollow sphere is broken, the resulting pieces will have the same amount of charge as the original sphere, but the distribution of the charge will be different. The broken pieces will also have their own electric fields.
A charged hollow sphere can be built by either transferring electrons to or from the surface of a neutral hollow sphere, or by charging a non-conductive hollow sphere through induction using a charged object. The amount and distribution of the charge can be controlled by the method used to charge the sphere.
A charged hollow sphere has various applications in technology and research. For example, it can be used in particle accelerators to create and manipulate charged particles, in electrostatic generators to produce high voltages, and in electrostatic precipitators to remove impurities from industrial exhaust. It is also a fundamental concept in understanding the behavior of electric fields and charges.