P 6
Find the potential differene across the ends of 15 m long copper wire 0.5 mm
in diameter to maintain steady current of 4 amperes. (Resistivity of copper is
1.54 x 10-8 m)
Ans: [4.71 volts]
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Referential integrity
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Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what id. 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.
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