Linked from
The 10 pages that link to Volt, each with the reason it gives.
WattRelated: Electrical power in watts equals voltage multiplied by current.
OhmRelated: One volt across a component carrying one ampere corresponds to one ohm.
FaradRelated: Voltage is the denominator in the farad's definition, coulombs per volt.
HenryRelated: One henry produces one volt when current changes at one ampere per second.