Which set lists the three factors associated with AC voltage?

Which set lists the three factors associated with AC voltage?

• A. Conductor, Magnetic Field, & Relative Motion
• B. Current, Resistance, Capacitance
• C. Voltage, Amperage, Power Factor
• D. Insulation, Grounding, Shielding

Answer: (A)

Voltage in AC systems comes from electromagnetic induction: a conductor exposed to a changing magnetic flux develops an electromotive force as the flux varies with time. The three factors that make this happen are a conductor, a magnetic field, and the relative motion between them, which continuously changes the flux and produces an alternating voltage. Other options describe electrical quantities or safety features rather than the mechanism that generates voltage, so they don’t fit the concept of how AC voltage is produced.

Voltage in AC systems comes from electromagnetic induction: a conductor exposed to a changing magnetic flux develops an electromotive force as the flux varies with time. The three factors that make this happen are a conductor, a magnetic field, and the relative motion between them, which continuously changes the flux and produces an alternating voltage. Other options describe electrical quantities or safety features rather than the mechanism that generates voltage, so they don’t fit the concept of how AC voltage is produced.