The correct statement for a ∆-connected source driving a ∆-connected load Load voltage and line voltage are one-third the source voltage for a given phase Load voltage and line voltage are two-thirds the source voltage for a given phase Load voltage and line voltage cancel for a given phase Load voltage, line voltage, and source … Read more
The Zener diode has One Pn Junction Three Pn Junctions Two Pn Junctions None of these Correct answer: 1. One Pn Junction
All the phase voltages in a ∆-connected generator are Equal in magnitude One-sixth of total One-third of total Zero Correct answer: 1. Equal in magnitude
In case of a balanced three-phase load, each phase has An equal amount of power One-third of total power Two-thirds of total power None of these Correct answer: 1. An equal amount of power
In case of a Y-connected ac generator, each phase voltage has a magnitude of 90 VRMS, what is the magnitude of each line voltage 0 V 156 V 298 V 90 V Correct answer: 2. 156 V
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 is given as Single-phase 16 A; three-phase 0 A Single-phase 16 A; three-phase 8 A Single-phase 32 A; three-phase 16 A Single-phase 8 A; three-phase 4 A Correct answer: … Read more
The magnitude of each line current in a Y-connected circuit is Equal to the corresponding phase current One-third the phase current Three times the corresponding phase current Zero Correct answer: 1. Equal to the corresponding phase current
In case of a ∆-connected source feeding a Y-connected load Each phase voltage equals the corresponding load voltage Each phase voltage equals the difference of the corresponding load voltages Each phase voltage is 60° Ωut of phase with the corresponding load voltage Each phase voltage is one-third the corresponding load voltage Correct answer: 2. Each … Read more
A three-phase ∆-connected generator is driving a balanced load such that each phase current is 12 A in magnitude. When Iθa = 12 ∠30° A, the polar expressions for the other phase currents are Iθb = 12 ∠120° A, Iθc = 12 ∠30° A Iθb = 12 ∠150° A, Iθc = 12 ∠-90° A Iθb … Read more
The correct statement regarding a Y-Y source/load configuration Line current and the load current are in phase and both are out of phase with the phase current Phase current and the line current are in phase and both are 120° out of phase with the load current Phase current, the line current and the load … Read more