Power is measured in a three-phase load by using an ammeter.

In a Y-connected source feeding a ∆-connected load,

A. Each phase of the load has one-third of the full line voltage across it

B. Each phase of the load has two-thirds of the full line voltage across it

C. Each phase of the load has the full line voltage across it

D. Each phase of the load has a voltage across it equal to $$\sqrt 3 $$

The stator is the rotating assembly in a generator or motor.

A. True

B. False

In a Y-connected circuit, between each line voltage and the nearest phase voltage, there is a phase angle of

A. 0°

B. 30°

C. 60°

D. 120°

Compare the total copper cross sections in terms of current-carrying capacity for a single-phase and a three-phase 120 V system with effective load resistance of 15 Ω.

A. Single-phase 32 A; three-phase 16 A

B. Single-phase 16 A; three-phase 8 A

C. Single-phase 8 A; three-phase 4 A

D. Single-phase 16 A; three-phase 0 A