Electric Circuits VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is RYB. YRB. BRY. RBY. RYB. YRB. BRY. RBY. 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 infinite, zero zero, infinite zero, zero infinite, infinite infinite, zero zero, infinite ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called the frequency in AC operation? No. of wave made per second. No. of (+) ve quadrature made per second. No. of (-) ve quadrature made per second. No. of cycles made per second. No. of wave made per second. No. of (+) ve quadrature made per second. No. of (-) ve quadrature made per second. No. of cycles made per second. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Instantaneous power in inductor is proportional to the product of the instantaneous current and rate of change of current. square of instantaneous current. temperature of the inductor. square of the rate of change of current. product of the instantaneous current and rate of change of current. square of instantaneous current. temperature of the inductor. square of the rate of change of current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current flowing between electrodes inside a lead acid battery is polarization current. ionization current. proton current. electron current. polarization current. ionization current. proton current. electron current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Real power × cosθ. Apparent power × sinθ. Apparent power × cosθ. Real power × sinθ. Real power × cosθ. Apparent power × sinθ. Apparent power × cosθ. Real power × sinθ. ANSWER DOWNLOAD EXAMIANS APP
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