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 8.85 A. 5 A. zero. 50 A. 8.85 A. 5 A. zero. 50 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The common voltage across parallel branches with different voltage sources can be determined by the relation V = (V1 / R1 + V2 / R2 + V3 / R3) / (1 / R1 + 1 / R2 +1 / R3 .....) The statement is associated with which theorem? Millman’s theorem. Thevenin’s theorem. Superposition theorem. Norton’s theorem. Millman’s theorem. Thevenin’s theorem. Superposition theorem. Norton’s theorem. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current flowing between electrodes inside a lead acid battery is proton current. electron current. polarization current. ionization current. proton current. electron current. polarization current. ionization current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The greater the internal resistance of a cell the lesser the emf. the lesser the terminal voltage. the greater the terminal voltage. the greater the emf. the lesser the emf. the lesser the terminal voltage. the greater the terminal voltage. the greater the emf. 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? 20 V. 30 V. 60 V. 50 V. 20 V. 30 V. 60 V. 50 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of following materials has the least resistivity ? Copper. Zinc. Lead. Mercury. Copper. Zinc. Lead. Mercury. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS