Electric Circuits In which of the circuits power factor can be zero? inductive. both ‘a’ and ‘b’ capacitive. resistive. inductive. both ‘a’ and ‘b’ capacitive. resistive. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance. zero, zero infinite, infinite zero, infinite infinite, zero zero, zero infinite, infinite zero, infinite infinite, zero ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following can not be connected in series unless they are identical? Voltage source. Current source. Resistance. Both of above. Voltage source. Current source. Resistance. Both of above. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then voltage across each resistor is remain same. doubled. increase by two times. halved. remain same. doubled. increase by two times. halved. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Apparent power × sinθ. Apparent power × cosθ. Real power × cosθ. Real power × sinθ. Apparent power × sinθ. Apparent power × cosθ. Real power × cosθ. Real power × sinθ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms with fewer than 4 valence electrons are insulator. semi-conductor. conductor. none of these. insulator. semi-conductor. conductor. none of these. ANSWER DOWNLOAD EXAMIANS APP
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