Electric Circuits A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA. 900 130 400 250 900 130 400 250 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In which of the circuits power factor can be zero? resistive. both ‘a’ and ‘b’ inductive. capacitive. resistive. both ‘a’ and ‘b’ inductive. capacitive. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of the voltage U(t)= 3 + 4cos(3t) 4.123 V. 5 V. {3 + 2(1.141)} V. 7 V. 4.123 V. 5 V. {3 + 2(1.141)} V. 7 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will none of these. increase. remain constant. decrease. none of these. increase. remain constant. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A pole of driving point impedance is zero current for a finite value of driving current. zero voltage for a finite value of driving voltage. zero current for a finite value of driving voltage. zero voltage for a finite value of driving current. zero current for a finite value of driving current. zero voltage for a finite value of driving voltage. zero current for a finite value of driving voltage. zero voltage for a finite value of driving current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In series RLC circuit what is the power factor just bellow the resonance frequency? Unity Leading Zero Lagging Unity Leading Zero Lagging ANSWER DOWNLOAD EXAMIANS APP
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