# The product of apparent power and cosine of the phase angle between circuit voltage and current is?

54 views
The product of apparent power and cosine of the phase angle between circuit voltage and current is?

The product of apparent power and cosine of the phase angle between circuit voltage and current is true power.

## Related questions

The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is?

The power consumed in a circuit element will be least when the phase difference between the current and voltage is?

Two waves of the same frequency have opposite phase when the phase angle between them is?

What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value ?

The ratio of active power to apparent power is known as____ factor.

Active power and apparent power are represented by?

The power factor angle and torque angle of a salient pole synchronous generator drawing a current of 1.0 pu from a lagging load are 45o and 15o, respectively. The direct axis and quadrature axis currents, respectively, are (A) 0.5 pu, 0.866 pu (B) 0.866 pu, 0.5 pu (C) 0.707 pu, 0.707 pu (D) 0.5 pu, 0.5 pu

Phase margin is the amount of angle to make the system  (1) Oscillatory (2) Stable (3) Unstable (4) Exponential

The r.m.s. value of pure cosine function is?

The synchronous motor will develop maximum power when the load angle is?

What is power factor angle?

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that?

List any two methods of reactive power measurement in 3 phase circuit.

In an alternator at lagging power factor the generated voltage per phase as compared to that at unity power factor?

When the firing angle a of a single-phase, fully controlled rectifier feeding constant direct current into a load is 30°, the displacement power factor of the rectifier is

Write the relation between phase and line current, phase and line voltage for Star connection.

Explain power relations in three phase circuit.

Explain power in single phase AC circuit.

The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.

In a Y -connected circuit, between each line -voltage and the nearest phase - voltage, there is a phase -angle of: A. 0° B. 30° C. 60° D. 120°

For a balanced three phase star connected load for which line voltage is 230V and per phase resistance and reactance is 6 Ohm and 8 Ohm respectively. Calculate: 1) phase voltage 2) line current 3) power factor 4) total power absorbed

Torque angle for the synchronous machine is the angle between (A) stator magnetic field and rotor magnetic field (B) stator magnetic field and net magnetic field in the air gap (C) rotor magnetic field and net magnetic field in the air gap (D) excitation voltage and impedance voltage drop

What is the difference between line and phase current?

What is the difference between line and phase voltage?

With a neat sketch explain working of 1 phase dynamometer type power factor meter.

State any two disadvantages of one wattmeter method of measurement of 3 phase power.

How to find total impedance Z, current I and Impedance angle ?

What is the relationship between power and current?

Explain the principle of ON-OFF control and phase control of AC voltage controller with suitable circuit and waveforms.

To a highly inductive circuit, a small capacitance is added in series. The angle between voltage and current will _____.

If resistance is 8 Ohm and current is 16 ampere then what will be the voltage and power?

The phase difference between sine and cosine function for a given wave form is

What happens to the angle between current and voltage, when a small capacitance is added in series with a highly inductive circuit?  (A) Increases (B) Remains same as earlier angle (C) Decreases (D) Becomes indeterminant

Angle of friction is the?

What is the maximum value of torque angle in synchronous motor?

The armature current on symmetrical 3 phase short circuit of a synchronous machine (salient pole)  (A) has q -axis current only (B) has d -axis current only (C) has both d and q axis currents (D) cannot be divided between q and d axis currents

Tangent of angle of friction is equal to?

What is meant by firing angle of thyristor?

When the phase difference between two sinusoidal quantities is 90° they are said to be ______ A) Phase right angle B) Phase quadrature C) Phase sinuright D) None of these