Examlex
Which of the following is not true of surrogate keys?
Parallel Circuit
A circuit in which two or more of the connected components or contact symbols in a ladder program are connected to the same pair of terminals so that current may flow through all the branches; contrasted with a series connection, in which the parts are connected end to end so that current flow has only one path.
Series Circuit
A circuit in which the components or contact symbols are connected end to end, and all must be closed to permit current flow.
Series-Parallel Circuit
A circuit configuration that combines elements in both series and parallel to achieve desired electrical characteristics.
NOR Function
A logical operation that produces a true output only when all its inputs are false.
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