Quizzes

Electronics quizzes with answers and explanations: basics, Ohm's law, resistors, capacitors, diodes, transistors and digital logic.

• CapacitorsCharge storage, series vs. parallel, and why they show up next to every IC.
• Digital logic basicsBinary, logic gates and truth tables - the building blocks of digital circuits.
• Diodes & LEDsForward voltage, polarity, rectification and what makes an LED light up.
• Electronics basicsVoltage, current, components and the vocabulary every circuit uses.
• InductorsCoils, magnetic fields, and why they fight a current that's changing.
• Ohm's law & powerV = IR, P = VI, and the quick calculations that come up on every board.
• ResistorsColor codes, series vs. parallel, tolerance and what R1 means on a board.
• TransistorsBJTs as switches and amplifiers - base, collector, emitter and what turns them on.