WorksheetsBasic Power Concepts
Total questions: 10
Worksheet time: 4mins
In the power triangle - which type of power is the hypotenuse and the combination of the other types of power?
Real Power
Apparent Power
Reactive Power
AC Power
Which type of power is also known as imaginary power?
Real Power
Apparent Power
Reactive Power
AC Power
What is the formula for real power?
V x I
V x I x cos θ
I2 x R
V x I x sin θ
In a purely resistive circuit, which of the following is true?
Reactive loads exist
VAR = VA
W = VAR
W = VA
Which of the following is NOT an example of a purely resistive load?
Incandescent light bulb
Toaster
LED light bulb
Space heater
What is the formula for Ohm's Law?
V = I x R
V = I x R2
V = I2 x R
P = I x V
Resistance is measured in...
Volts (V)
Ohms (Ω)
Amps (A)
Watts (W)
Given a 120V circuit with a 60 W incandescent light bulb, what is the current of this circuit?
0.5 A
1 A
2 A
20 A
What is the resistance of the 60W light bulb circuit with V = 120V, I = 0.5A?
60 Ω
0 Ω
120 Ω
240 Ω
What is the phase angle of the 60W light bulb circuit?
90⁰
30⁰
0⁰
25⁰
