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Questions and Answers
What is the symbol for reactive power, and in what unit is it measured?
What is the symbol for reactive power, and in what unit is it measured?
- P, Watts
- R, Ohms
- Q, Volt-Amps-Reactive (VAR) (correct)
- S, Volt-Amps (VA)
In a purely resistive circuit, what is the power factor?
In a purely resistive circuit, what is the power factor?
- 2
- 0.5
- 1 (perfect) (correct)
- 0 (zero)
What is the power factor for a purely inductive circuit?
What is the power factor for a purely inductive circuit?
- 2
- 1 (perfect)
- 0 (zero) (correct)
- 0.5
In a predominantly capacitive circuit, what happens to the true power?
In a predominantly capacitive circuit, what happens to the true power?
For a purely capacitive circuit, how does the power triangle look like?
For a purely capacitive circuit, how does the power triangle look like?
What is the unit of measurement for apparent power, and what symbol represents it?
What is the unit of measurement for apparent power, and what symbol represents it?
In a series circuit, how are the components connected?
In a series circuit, how are the components connected?
What is the unit of measurement for the readiness with which a conductor transmits an electric current?
What is the unit of measurement for the readiness with which a conductor transmits an electric current?
In a predominantly capacitive circuit, the power is:
In a predominantly capacitive circuit, the power is:
According to Ohm's Law equations, what must be common to the same two points in the circuit?
According to Ohm's Law equations, what must be common to the same two points in the circuit?
What is the total resistance in a parallel circuit?
What is the total resistance in a parallel circuit?
What happens to the current in a series circuit when resistance is increased?
What happens to the current in a series circuit when resistance is increased?
In a purely resistive circuit, what is the relationship between voltage and current?
In a purely resistive circuit, what is the relationship between voltage and current?
What happens to the power factor in a purely inductive circuit?
What happens to the power factor in a purely inductive circuit?
How is impedance managed in a purely capacitive circuit?
How is impedance managed in a purely capacitive circuit?
In a predominantly inductive circuit, what happens to the power factor?
In a predominantly inductive circuit, what happens to the power factor?
What happens to the reactive power in a predominantly capacitive circuit?
What happens to the reactive power in a predominantly capacitive circuit?
What is the relationship between true power and apparent power?
What is the relationship between true power and apparent power?
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