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 What are the points to be mentioned in specifying main switches? Both A and B. Voltage grade. Current rating. None of these. Both A and B. Voltage grade. Current rating. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance? 200 Ohms. 50 Ohms. 100 Ohms. 400 Ohms. 200 Ohms. 50 Ohms. 100 Ohms. 400 Ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Real power × sinθ. Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. Real power × sinθ. Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. 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? Norton’s theorem. Thevenin’s theorem. Superposition theorem. Millman’s theorem. Norton’s theorem. Thevenin’s theorem. Superposition theorem. Millman’s theorem. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The mass of a proton is 1.672 × 10 - 27 Kg. 1.602 × 10 - 19 Kg. 1.609 × 10 - 31 Kg. 1.675 × 10 - 27 Kg. 1.672 × 10 - 27 Kg. 1.602 × 10 - 19 Kg. 1.609 × 10 - 31 Kg. 1.675 × 10 - 27 Kg. ANSWER DOWNLOAD EXAMIANS APP
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