| v, symbol for instantaneous voltage | Capacitors and calculus |
| | Inductors and calculus |
| Vdd, versus Vcc | CMOS gate circuitry |
| VA (unit) | True, Reactive, and Apparent Power |
| | Power capacity |
| vacuum tube | Conventional versus electron flow |
| | Voltmeter impact on measured circuit |
| | Winding configurations |
| vacuum tube audio amplifier | Vacuum Tube Audio Amplifier |
| valence | Introduction |
| Valence band | Band Theory of Solids |
| valence electrons | Valence Electrons |
| valence shell | Quantum physics |
| | Angular Momentum Quantum Number |
| | Pauli exclusion principle |
| | Quantum Mechanics |
| Value, instantaneous | AC Resistor Circuits |
| | AC Resistor Circuits |
| valve | Introduction |
| VAR (unit) | True, Reactive, and Apparent Power |
| varactor diode | Varactor Diode |
| variable capacitor | Factors affecting capacitance |
| | AC Instrumentation Transducers |
| variable component, symbol modifier | Resistors |
| variable inductor | Variable inductor |
| variable reluctance motor | Reluctance motor |
| Variable transformer | Winding configurations |
| | AC Instrumentation Transducers |
| Variac | Winding configurations |
| varistor | Nonlinear Conduction |
| VCO | Gas discharge tubes |
| Vector | Introduction |
| | Power in resistive and reactive AC circuits |
| vector addition | Simple vector addition |
| | Complex vector addition |
| vector amplitude | Vectors and AC waveforms |
| Vector angle | Polar and rectangular notation |
| Vector length | Polar and rectangular notation |
| Vector magnitude | Polar and rectangular notation |
| Vector modulus | Polar and rectangular notation |
| vector phase shift | Vectors and AC waveforms |
| Vector sum | Some examples with AC circuits |
| Vector, absolute value | Polar and rectangular notation |
| Velocity factor, transmission line | Characteristic impedance |
| Venn Diagram | Venn Diagram and Sets |
| Verilog | Introduction |
| VHDL | Introduction |
| Virtual ground | Divided feedback |
| VME | Short-distance busses |
| VMOS transistor | IGBTs |
| volatile memory | Digital memory terms and concepts |
| Volt (unit) | How voltage, current, and resistance relate |
| volt-amp (unit) | Power capacity |
| Voltage | Voltage and current |
| | Shock current path |
| | Voltmeter usage |
| | How voltage, current, and resistance relate |
| Voltage "polarity," AC | Single-phase power systems |
| | More on AC "polarity" |
| | Some examples with AC circuits |
| Voltage averager | A Very Simple Computer |
| Voltage buffer | Negative feedback |
| voltage comparator | Voltage Comparator |
| Voltage detector, sensitive | Sensitive voltage detector |
| Voltage divider | Voltage divider |
| | Potentiometer as a Voltage Divider |
| | Voltage divider circuits |
| | Potentiometer |
| Voltage divider formula | Voltage divider circuits |
| Voltage doubler circuit | Voltage multipliers |
| Voltage drop | Voltage and current |
| Voltage follower | Negative feedback |
| | The common-collector amplifier |
| | Precision voltage follower |
| | Voltage Follower |
| | Simple Op-Amp |
| Voltage multiplier circuit | Voltage multipliers |
| Voltage polarity | Voltage and current |
| | Polarity of voltage drops |
| | Mesh current method |
| | Kirchhoff's Voltage Law (KVL) |
| Voltage regulation | Voltage regulation |
| Voltage regulator | The common-collector amplifier |
| | Voltage regulator |
| Voltage regulator tube | Ionization (gas-filled) tubes |
| voltage rise | The Shockley Diode |
| | The Silicon-Controlled Rectifier (SCR) |
| Voltage signal | Voltage signal systems |
| Voltage, between common points | Circuit wiring |
| voltage, bias | The common-emitter amplifier |
| | Biasing techniques |
| voltage, common-mode | Electrical isolation |
| | Common-Mode Gain |
| | Differential Amplifier |
| voltage, forward | Diode Characteristic |
| Voltage, forward, PN junction | The NOT gate |
| Voltage, line | Three-Phase Y and Delta Configurations |
| Voltage, op-amp output saturation | Negative feedback |
| Voltage, phase | Three-Phase Y and Delta Configurations |
| voltage, polarity | A Very Simple Circuit |
| Voltage, precise definition | Voltage and current |
| | Power in electric circuits |
| Voltage, ripple | Half-wave rectifier |
| | Rectifier/filter circuit |
| Voltage, sources | Voltage and current |
| Voltage-controlled oscillator | Microwave tubes |
| | Gas discharge tubes |
| Voltmeter | Safe meter usage |
| | Voltmeter design |
| | AC Voltmeters and Ammeters |
| Voltmeter impact | Voltmeter impact on measured circuit |
| Voltmeter loading | Voltmeter impact on measured circuit |
| voltmeter usage | Voltmeter usage |
| Voltmeter, amplified | Voltmeter impact on measured circuit |
| Voltmeter, null-balance | pH measurement |
| Voltmeter, potentio | Voltmeter impact on measured circuit |
| Voltmeter, potentiometric | pH measurement |
| VTVM | Voltmeter impact on measured circuit |
| VXI | Short-distance busses |
