The following demonstrations use a java applet that simulates electronic circuits. Click on the "Resistors" example for a brief summary of how the applet works. Or you can use the full applet.

• Basics
  • Ohm's Law
  • Resistors
  • Capacitor
  • Inductor
  • RLC Circuit
  • Voltage Divider
  • Series/Parallel
    • Inductors in Series
    • Inductors in Parallel
    • Capacitors in Series
    • Capacitors in Parallel
  • Thevenin's Theorem
  • Norton's Theorem
• A/C Circuits
  • A/C Response of Capacitor
  • A/C Response of Inductor
  • Caps of Various Capacitances
  • Caps w/ Various Frequencies
  • Inductors of Various Inductances
  • Inductors w/ Various Frequencies
  • Impedances of Same Magnitude
  • Series Resonance
  • Parallel Resonance
• Passive Filters
  • High-Pass Filter (RC)
  • High-Pass Filter response (RC)
  • Low-Pass Filter (RC)
  • High-Pass Filter (RL)
  • Low-Pass Filter (RL)
  • Band-Pass Filter
  • Notch Filter
  • Twin-T Filter
  • Crossover
• Other Passive Circuits
  • 3-Way Light Switches
  • 3- and 4-Way Light Switches
  • Differentiator
  • Wheatstone Bridge
  • Critically Damped RLC
  • Current Source
  • Transformers
    • Transformer
    • Step-Up Transformer
    • Step-Down Transformer
    • Long Distance Power Transmission
    • Transformer w/ DC
  • Inductive Kickback
  • Blocking Inductive Kickback
  • Power Factor
  • Power Factor Correction
  • LC Ladder
  • Phase-Sequence Network
• Diodes
  • Diode
  • Diode I/V Curve
  • Half-Wave Rectifier
  • Full-Wave Rectifier
  • Full-Wave Rectifier w/ Filter
  • Diode Limiter
  • Zener Diodes
    • Zener I/V Curve
    • Zener Voltage Reference
    • Zener Voltage Reference w/ Follower
  • DC Restoration
  • Blocking Inductive Kickback
  • Spike Generator
  • Voltage Multipliers
    • Voltage Doubler
    • Voltage Tripler
    • Voltage Quadrupler
  • AM Detector
  • Waveform Clipper
  • Triangle-to-Sine Converter
• Op-Amps
  • Op-Amp
  • Op-Amp Feedback
  • Amplifiers
    • Inverting Amplifier
    • Noninverting Amplifier
    • Follower
    • Differential Amplifier
    • Summing Amplifier
    • Log Amplifier
    • Class-D Amplifier
  • Half-Wave Rectifier (inverting)
  • Full-Wave Rectifier
  • Peak Detector
  • Integrator (inverting)
  • Differentiator (inverting)
  • Schmitt Trigger
  • Oscillators
    • Relaxation Oscillator
    • Triangle Wave Generator
    • Sawtooth Wave Generator
    • Sine Wave Generator
    • Voltage-Controlled Oscillator
    • Phase-Shift Oscillator
    • Phase-Shift Oscillator Filter
  • Negative Impedance Converter
  • Gyrator
  • Capacitance Multiplier
  • Howland Current Source
  • Current-to-Voltage Converter
  • Voltage Regulator
• MOSFETs
  • n-MOSFET
  • p-MOSFET
  • Switch
  • Source Follower
  • Current Source
  • Current Ramp
  • Current Mirror
  • Common-Source Amplifier
  • CMOS Inverter
  • CMOS Inverter (w/capacitance)
  • CMOS Inverter (slow transition)
  • CMOS Transmission Gate
  • CMOS Multiplexer
  • Sample-and-Hold
  • Delayed Buffer
  • Leading-Edge Detector
  • Switchable Filter
  • Voltage Inverter
  • Inverter Amplifier
  • Inverter Oscillator
  • Logic
    • CMOS NAND
    • CMOS NOR
    • CMOS XOR
    • CMOS Flip-Flop
    • CMOS Master-Slave Flip-Flop
    • Ternary Logic Inverter
• Transistors (Bipolar)
  • NPN Transistor (Bipolar)
  • PNP Transistor (Bipolar)
  • Switch
  • Emitter Follower
  • Common-Emitter Amplifier
  • Unity-Gain Phase Splitter
  • Schmitt Trigger
  • Current Source
  • Current Source Ramp
  • Current Mirror
  • Differential Amplifiers
    • Differential Amplifier
    • Differential Amplifier: Common-Mode Input
    • Differential Amplifier: Common-Mode w/Current Source
  • Push-Pull Follower
    • Simple Push-Pull Follower, with Distortion
    • Improved Push-Pull Follower
  • Multivibrators
    • Bistable Multivibrator (Flip-Flop)
    • Astable Multivibrator (Oscillator)
    • Monostable Multivibator (One-Shot)
  • Oscillators
    • Colpitts Oscillator
    • Hartley Oscillator
    • Emitter-Coupled LC Oscillator
  • Logic
    • RTL Inverter
    • RTL NAND
    • DTL NAND
    • TTL NAND
    • TTL NOR
    • ECL NOR/OR
• Combinational Logic
  • Exclusive OR
  • Half Adder
  • Full Adder
  • 1-of-4 Decoder
  • 2-to-1 Mux
  • Majority Logic
  • 2-Bit Comparator
  • 7-Segment LED Decoder
• Sequential Logic
  • Flip-Flops
    • SR Flip-Flop
    • Clocked SR Flip-Flop
    • Master-Slave Flip-Flop
    • Edge-Triggered D Flip-Flop
    • JK Flip-Flop
  • Counters
    • 4-Bit Ripple Counter
    • 8-Bit Ripple Counter
    • Synchronous Counter
    • Decimal Counter
    • Gray Code Counter
    • Johnson Counter / Decade Counter
  • Divide-by-2
  • Divide-by-3
  • Traffic Light
  • Dynamic RAM
• 555 Timer Chip
  • 555 Square Wave Generator
  • 555 Internals
  • 555 Sawtooth Oscillator
  • 555 Low-duty-cycle Oscillator
  • 555 Monostable Multivibrator
  • 555 Pulse Sequencer
  • 555 Pulse Width Modulator
  • 555 Schmitt Trigger (inverting)
  • 555 Missing Pulse Detector
• Transmission Lines
  • Simple Transmission Lines
  • Standing Wave on a Transmission Line
  • Termination of a Transmission Line
  • Mismatched transmission lines (Pulse)
  • Mismatched transmission lines (Standing Wave)
  • Impedance Matching (L-Section)
  • Impedance Matching (Shunt Stub)
  • Stub Frequency Response
  • Low-Pass Filter
  • Light Switch
• Memristors
  • Memristor
  • Memristor Response to Sine Wave
  • Memristor Response to Square Wave
  • Memristor Response to Triangle Wave
  • Memristor Hard-Switching 1
  • Memristor Hard-Switching 2
• Tunnel Diodes
  • Tunnel Diode I/V Curve
  • Tunnel Diode Relaxation Oscillator
• Spark Gaps
  • Sawtooth Oscillator
  • Tesla Coil
  • Marx Generator

Polish version.