Electric Circuits A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is 0.85. 1. 10. 0.4. 0.85. 1. 10. 0.4. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the mass number of an element that has 19 protons, 19 electrons, and 20 neutrons? 20. 39. 19. 38. 20. 39. 19. 38. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Pure metal generally have high conductivity and low temperature coefficient. high conductivity and large temperature coefficient. low conductivity and high temperature coefficient. low conductivity and zero temperature coefficient. high conductivity and low temperature coefficient. high conductivity and large temperature coefficient. low conductivity and high temperature coefficient. low conductivity and zero temperature coefficient. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The power dissipated in a pure capacitor is zero. proportional to applied voltage. proportional to the value of capacitance. both (B) and (C) above. zero. proportional to applied voltage. proportional to the value of capacitance. both (B) and (C) above. 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. Superposition theorem. Millman’s theorem. Thevenin’s theorem. Norton’s theorem. Superposition theorem. Millman’s theorem. Thevenin’s theorem. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The energy stored by a capacitor is given by Q2 / 2C. all of them. 1/2 CV2. 1/2 QV. Q2 / 2C. all of them. 1/2 CV2. 1/2 QV. ANSWER DOWNLOAD EXAMIANS APP
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