Electronics Information

Practice all of Electronics Information

Questions from every topic, mixed together. The quickest way to see where you stand.

Or practice one topic

Best right after you read that topic’s lesson, to check it stuck. These are the 15 topics in Electronics Information, in the order worth learning them.

• Current, Voltage and ResistanceWhat each quantity is, its unit, and how the three relate physically.
• Ohm's LawThe relationship in all three arrangements, and the one-step problems built on it.
• Series CircuitsOne path, current constant everywhere, resistances adding.
• Parallel CircuitsBranches sharing voltage, and why total resistance falls below the smallest branch.
• Electrical PowerWatts, the power relationships, and energy over time.
• AC and DCHow the two differ, frequency, and where each is used.
• Conductors, Insulators and SemiconductorsWhat makes a material each, common examples, and wire gauge.
• Capacitors and InductorsWhat each stores, how each behaves in a circuit, and why they resist AC differently.
• Transformers, Motors and GeneratorsStep-up and step-down, and converting between electrical and mechanical energy.
• Diodes and Semiconductor DevicesDiodes, rectification and transistors, at the depth the subtest asks for.
• Amplifiers and OscillatorsWhat an amplifier does, gain, and how positive feedback produces an oscillator.
• Digital Logic and Number SystemsBinary and hexadecimal, bits and bytes, the basic logic gates, and converting between analog and digital.
• Radio and AntennasRadio waves as electromagnetic radiation, frequency and wavelength, modulation, and what an antenna does.
• Circuit Protection and GroundingFuses, breakers, grounding, and electrical safety.
• Schematic SymbolsThe dozen symbols that appear on the test and how to read a simple diagram.