Question 1 of 10
What is the standard unit of power?
The watt (W) is the standard unit for measuring power.
Question 2 of 10
How many watts are in a kilowatt (kW)?
One kilowatt is equal to 1,000 watts.
Question 3 of 10
Which of the following equations represents power (P) in a DC circuit?
In a DC circuit, power is calculated as voltage (V) multiplied by current (I).
Question 4 of 10
What does 'kW' stand for?
'kW' is the abbreviation for kilowatt.
Question 5 of 10
If a device consumes 2000 watts, how many kilowatts is that?
2000 watts divided by 1000 equals 2 kilowatts.
Question 6 of 10
What is the relationship between energy (Joules), power (Watts), and time (seconds)?
Power is defined as energy transferred or work done per unit of time (P = W/t or J/sec)
Question 7 of 10
What is the power consumed by a 120V circuit with a 2A current flow?
Using P=V*I, 120V * 2A = 240W.
Question 8 of 10
In a single-phase AC circuit, which of the following equations represents power (P)?
In a single-phase AC circuit, the power calculation includes the power factor (cos(phi)).
Question 9 of 10
Which prefix represents a multiple of 1,000,000 watts?
Mega (M) represents 1,000,000.
Question 10 of 10
If 10,000 Joules of energy is released in 10 seconds, what is the power in kW?
Power = 10,000 J / 10 s = 1000 W = 1 kW.
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