Electric Circuits The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be 5250 rpm in forward direction. 107.14 rpm in forward direction. 107.14 rpm in reverse direction. 5250 rpm in reverse direction. 5250 rpm in forward direction. 107.14 rpm in forward direction. 107.14 rpm in reverse direction. 5250 rpm in reverse direction. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Reactive power drawn by a pure resistor is maximum 0 None of these minimum maximum 0 None of these minimum ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is 50 A. 8.85 A. zero. 5 A. 50 A. 8.85 A. zero. 5 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when R < r. R > r. None of these R = r. R < r. R > r. None of these R = r. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A particular current is made up of two component : a 10 A and a sine wave of peak value 14.14 A. The average value of current is 14.14 A. zero. 24.14 A. 10 A. 14.14 A. zero. 24.14 A. 10 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A delta connection contains three equal impedance of 60 Ω. The impedance of the equivalent star connection for each star load will be 30 Ω. 40 Ω. 15 Ω. 20 Ω. 30 Ω. 40 Ω. 15 Ω. 20 Ω. ANSWER DOWNLOAD EXAMIANS APP
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