Electrical Concepts Quiz
Challenge yourself with these questions on electrical concepts including voltage law, resistance, diodes, transformers, and more!
#1
What is the unit of electrical resistance?
#2
What is the SI unit of electric charge?
Ampere-hour
Coulomb
Farad
Watt-second
#3
In a DC circuit, what does Kirchhoff's voltage law state?
Voltage across a closed loop is zero
Current entering a junction is equal to the current leaving the junction
Voltage across a resistor is proportional to the current flowing through it
The sum of currents entering a junction is zero
#4
What is the purpose of a diode in an electrical circuit?
To amplify signals
To regulate voltage
To store electrical energy
To control the flow of current
#5
What is the purpose of a transformer in an electrical system?
To store electrical energy
To convert AC to DC
To change voltage levels
To control current flow
#6
What is the relationship between power, voltage, and current in an electrical circuit according to the power equation?
P = V/I
P = VI
P = V^2/R
P = I^2R
#7
What does the term 'ground' (earth) refer to in an electrical system?
A low-resistance path for electric current
The negative terminal of a battery
A high-resistance path for electric current
The positive terminal of a battery
#8
Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points?
Ohm's Law
Faraday's Law
Kirchhoff's Law
Lenz's Law
#9
What is the function of a capacitor in an electronic circuit?
To amplify signals
To store electrical energy
To regulate voltage
To control the flow of current
#10
What is the primary function of a circuit breaker in an electrical system?
To control voltage
To store electrical energy
To protect against overcurrent
To regulate resistance
#11
What is the relationship between frequency and wavelength in an electromagnetic wave?
Directly proportional
Inversely proportional
No relationship
Exponential relationship
#12
What is the function of a Zener diode in a circuit?
To regulate voltage
To amplify signals
To control current flow
To convert AC to DC
Sign In to view more questions.
Quiz Questions with Answers
Forget wasting time on incorrect answers. We deliver the straight-up correct options, along with clear explanations that solidify your understanding.
Popular Quizzes in Electrical Engineering
Report