C Flashcards
C1
What are the five sources of electrical energy?
Magnetism, chemical energy light heat, and pressure.
C2
What is the basic unit of power in a DC circuit.
The Watt.
C3
What is meant by kilowatt?
1000 Watts.
C4
What is meant by megawatt?
1000000 Watts
C5
What is the formula for power in a DC circuit?
Power= voltage times current {P=E(I)}
C6
What is the relationship between mechanical power and electrical power?
1horsepower=746 Watts
C7
What is meant b true power in an AC circuit?
The proudest of the circuit voltage and the current that is in phase with that voltage.
C8
In what units is true power expressed in?
In Watts.
C9
What is meant by apparent power?
The product of the circuit voltage by the circuit current.
C10
In what units is apparent power expressed in?
In volt-amps/
C11
what is meant by reactive power in anAC circuit?
Wee consumed in the inductive and capacitive reactance in an AC Circuit. Reactive power is also called watt less power.
C12
In what units is reactive power expressed?
In volt-amps reactive (VAR), or kilovotamps reactive (KVAR).
C13
What is meant power factor in an AC Circuit?
The ratio of true power to apparent power. It is also the ratio of circuit resistance to circuit Impedence.
