Electric Circuits A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is 200 V. 250 V. 250 / √3 V. 250 √3 V. 200 V. 250 V. 250 / √3 V. 250 √3 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In above question, if circuit efficiency is 90 %. What will be output power ? 37.3 kW. 40 kW. 35.6 kW. 30 kW. 37.3 kW. 40 kW. 35.6 kW. 30 kW. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor carries a charge of 0.3 C at 20 V. Its capacitance is 1.5 μF. 0.015 F. 1.5 F. 15 μF. 1.5 μF. 0.015 F. 1.5 F. 15 μF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? YBR. RYB. RBY. BYR. YBR. RYB. RBY. BYR. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is zero. 50 A. 5 A. 8.85 A. zero. 50 A. 5 A. 8.85 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to 196 AT / m. 222 AT / m. 144 AT / m. 72 AT / m. 196 AT / m. 222 AT / m. 144 AT / m. 72 AT / m. ANSWER DOWNLOAD EXAMIANS APP
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