Two metal spheres, one of radius R and the other
of radius 2R respectively have the same surface
charge density . They are brought in contact and
separated. What will be the new surface charge
densities on them?
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Answer:
A patron supports someone or something. A patron of a business supports the business by being a loyal customer. ... A patron of the arts is someone who shows his appreciation or support for the arts by donating money to arts organizations.Referential integrity
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Referential integrity is a property of data stating that all its references are valid. In the context of relational databases, it requires that if a value of one attribute of a relation references a value of another attribute, then the referenced value must exist.