Answer Posted / lover boy
Relationship between frequency and voltage, i.e. voltage can be DC or AC. DC Voltage they don't have frequency because it is linear. AC voltage that's mean alternating current, meaning the voltage varies from Zero to 180 degrees positive (Half Cycle), and from 180 deg. to 360 deg negative (half cycle also) to complete one cycle in a period of time. i.e. cycle/second, that is frequency unit is Hertz. For clearly explanation you need to understand for Alternators Or AC Generators.
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