The peak value of a sine wave is 200 V. Its average value is___________?
The peak value of a sine wave is 200 V. Its average value is___________?A. 127.4 V
B. 141.4 V
C. 282.8 V
D. 200V
B. 141.4 V
C. 282.8 V
D. 200V
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All the rules and laws of D.C. circuit also apply to A.C. circuit containing_____________?
All the rules and laws of D.C. circuit also apply to A.C. circuit containing_____________?A. capacitance only
B. inductance only
C. resistance only
D. all aboveAn A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?
An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?A. the current through the resistance is more
B. the current through the resistance is less
C. both resistance and inductance carry equal currents
D. none of the aboveWhen an alternating current passes through an ohmic resistance the electrical power converted into heat is__________?
When an alternating current passes through an ohmic resistance the electrical power converted into heat is__________?A. apparent power
B. true power
C. reactive power
D. none of the aboveIn any A.C. circuit always__________?
In any A.C. circuit always__________?A. apparent power is more than actual power
B. reactive power is more than apparent power
C. actual power is more than reactive power
D. reactive power is more than actual powerIn a pure resistive circuit__________?
In a pure resistive circuit__________?A. current lags behind the voltage by 90°
B. current leads the voltage by 90°
C. current can lead or lag the voltage by 90°
D. current is in phase with the voltageTime constant of an inductive circuit_________?
Time constant of an inductive circuit_________?A. increases with increase of inductance and decrease of resistance
B. increases with the increase of inductance and the increase of resistance
C. increases with the decrease of inductance and decrease of resistance
D. increases with decrease of inductance and increase of resistance