Exercises
Build confidence in essential circuit design concepts with this electrician-focused fundamentals quiz. Test your understanding of electrical resistance, charge storage, series resistor behavior, diode functions, Ohm’s law, Kirchhoff’s Current Law, power calculations, ideal voltage sources, and inductance. These questions cover core principles used when reading circuit diagrams, troubleshooting electrical systems, and designing safe, effective circuits. Whether you are an apprentice, student, or practicing electrician refreshing your knowledge, this quiz offers a practical check of your foundational electrical theory skills.
Answer the questions below and check the explanation for each answer.
0/10 answered
Auto audio on: the next questions will be read aloud when you click Continue.
The basic unit of electrical resistance is the Ohm, represented by the symbol Ω. It quantifies how difficult it is for an electric current to pass through a conductor.
A capacitor is designed to store and release electrical charge. It consists of two conductive plates separated by an insulator.
When resistors are connected in series, their resistance values add up, thus the total resistance increases.
A diode allows current to flow primarily in one direction, acting as a one-way valve for electric current.
According to Ohm's Law (V = IR), if voltage is doubled and resistance remains constant, the current is doubled.
An inductor is a passive component that stores energy in its magnetic field when electric current passes through it.
Kirchhoff’s Current Law states that at any junction in an electrical circuit, the sum of currents entering the junction is equal to the sum of currents leaving the junction.
Power (P) is given by P = VI. If current (I) is tripled and voltage (V) remains constant, then power is increased nine times.
An ideal voltage source maintains a constant voltage output regardless of changes in the current drawn from it.
Increasing inductance does not inherently decrease frequency response as a general effect; it can vary with circuit design.
Free CourseInstall Your Own Solar Power System
5
(1)
59m
6 exercises
Free CourseElectronic Circuits Course
5
(6)
43h25m
49 exercises
Free CourseWind Turbines
5
(4)
3h49m
19 exercises
Free CourseEngineering Circuits Analysis
5
(6)
3h11m
20 exercises
Free CourseElectronics - Nanoelectronics: Devices and Materials
4.8
(44)
40h15m
31 exercises
Free CourseBasic electronics
4.8
(22)
6h04m
30 exercises
Free CourseElectrical - Fabrication of Silicon
4.8
(26)
35h10m
28 exercises
Free CourseElectrical engineering
4.8
(26)
11h53m
20 exercises
Thousands of online courses in video, ebooks and audiobooks.
To test your knowledge during online courses
Generated directly from your cell phone's photo gallery and sent to your email
Download our app via QR Code or the links below:.
Carry knowledge in your pocket.
Download the Cursa app.
There are hundreds of free courses available, with a free certificate of completion that is saved in your mobile image gallery.
Download the app to access the Course Completion Certificate for Free.
+ 10 million
students
Free and Valid
Certificate
60 thousand free
exercises
4.8/5 rating in
app stores
Free courses in
video and ebooks