Vacuum capacitor – Vacuum tube – Variable capacitor – Variable-frequency drive – Variac – Varicap – Variety (cybernetics) – Varistor – Varnish – Vector (geometric) – Vector calculus – Vector control (motor) – Vector group – Vehicle-to-grid – Vehicular automation – Velcro – Versorium – Vibrator (electronic) – Video camera tube – Video game console – Video processing – Virtual instrumentation – Virtual power plant – VLSI – Volt – Voltage compensation – Voltage-controlled amplifier – Voltage controller – Voltage converter – Voltage division – Voltage doubler – Voltage regulation – Voltage regulator – Voltage source – Voltage spike – Voltage – Voltage-to-current converter – Volt-ampere – Voltmeter – Volumetric flow rate –