Electric Circuits For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to (8.66 + j5) A. (8.66 - j5) A. (-8.66 - j5) A. (-9.66 + j5) A. (8.66 + j5) A. (8.66 - j5) A. (-8.66 - j5) A. (-9.66 + j5) A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the real power in AC operation? None of these. Both option A and B. Apperant power × cosφ. VIcosφ. None of these. Both option A and B. Apperant power × cosφ. VIcosφ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When AC flows through a pure capacitance then the current leads the emf by 90o. leads the emf by - 90o. is in phase with emf. lags the emf by 90o. leads the emf by 90o. leads the emf by - 90o. is in phase with emf. lags the emf by 90o. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant? 4 μsec 2 μsec 4 msec 2 msec 4 μsec 2 μsec 4 msec 2 msec ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor? 60 V. 20 V. 50 V. 30 V. 60 V. 20 V. 50 V. 30 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is 12.5 W. 25 W. 50 W. 100 W. 12.5 W. 25 W. 50 W. 100 W. ANSWER DOWNLOAD EXAMIANS APP