The production of two or more AC phases, or two or more alternating voltages of the same frequency, is called

The production of two or more AC phases, or two or more alternating voltages of the same frequency, is called

• A. Polyphase
• B. Monophase
• C. DC
• D. Rectification

Answer: (A)

Polyphase refers to producing two or more AC voltages that share the same frequency but are offset in phase. This is the basis for systems like three-phase power, where multiple sinusoidal voltages run at the same frequency and are separated in time (phase angles) to provide smoother, more efficient power delivery. A single AC voltage is called monophase, so one phase is not two or more. Direct current is a steady unidirectional flow, not alternating voltages. Rectification is the process of converting AC to DC, not creating multiple AC phases. So, the concept described is polyphase.

Polyphase refers to producing two or more AC voltages that share the same frequency but are offset in phase. This is the basis for systems like three-phase power, where multiple sinusoidal voltages run at the same frequency and are separated in time (phase angles) to provide smoother, more efficient power delivery. A single AC voltage is called monophase, so one phase is not two or more. Direct current is a steady unidirectional flow, not alternating voltages. Rectification is the process of converting AC to DC, not creating multiple AC phases. So, the concept described is polyphase.