Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? RBY. BYR. RYB. YBR. RBY. BYR. RYB. YBR. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The voltage across the 1 Ω resistor between the nodes A and B of the network shown in the given figure is 2 V. 4 V. 1 V. 3 V. 2 V. 4 V. 1 V. 3 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In which of the circuits power factor can be zero? inductive. resistive. capacitive. both ‘a’ and ‘b’ inductive. resistive. capacitive. both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of the resultant current in a wire which carries a DC current of 10A and a sinusoidal current of peak value 20A is 17.3A . 22.4A. 14.14A. 30A. 17.3A . 22.4A. 14.14A. 30A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance. zero, infinite infinite, zero zero, zero infinite, infinite zero, infinite infinite, zero zero, zero infinite, infinite ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the circuit given, I = 1 A for Is = 0. What is the value of I for Is = 2 A ? 4 A. 2 A. 3 A. 1 A. 4 A. 2 A. 3 A. 1 A. ANSWER DOWNLOAD EXAMIANS APP
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