Basics of Electricity

REVIEW 5 ANSWERS

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1. A transformer that has 500 turns in the primary and 50 turns in the secondary coil is a ___STEP DOWN___ type of transformer.

2. As electrical conductors increase in cross sectional area, their current-carrying capacity increases or decreases? ___ INCREASES___

3. Name the two factors that can cause excessive current to flow in a circuit. ___OVERLOAD___and___SHORT CIRCUIT___

4. Name the two components of impedance.  ____RESISTANCE____and____REACTANCE_____

5. The symbol for impedance is ____Z____

6. What is the power factor of a system having 81kW of productive power and 90kVA of total power? ___PF = 81/90 = 0.9____

7. The sum of the voltage drops at each circuit component always equals the voltage of the ___POWER SOURCE___

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