________: a measure of the economic rent or returns above costs accruing to businesses participating in a market during the current period.
Fill in the blank(s) with the appropriate word(s).
Producer surplus
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The ______ and ______ provide electrical contact with the armature loops.
A. Bendix®, field B. commutator segments, brushes C. pole shoes, brushes D. windings, shunt
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Which of the following is a probable cause of relay-controlled equipment failing to start when the contactor is closed?
a. excessive residual magnetism b. one contact not closing c. a grounded coil d. gummy deposits
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A salesperson should answer the telephone on the ___ ring
a. first c. third b. second d. fourth
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Electrical potential is:
A) One coulomb of electrons flowing in one second. B) Opposition to the flow of electricity. C) The ability to make current flow. D) The ability of electricity to do work.
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