The power factor of a D.C. circuit is always?

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The power factor of a D.C. circuit is always?

The power factor of a D.C. circuit is always unity.

Related questions

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The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is?

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The power factor at resonance in R-L- C parallel circuit is?

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What is the power factor of purely resistive circuit.

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Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

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Power factor of an electrical circuit is equal to?

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A d.c. source has an open circuit voltage of 30 V and an internal resistance of 1.5 Ohm. A resistive load is connected to the source. Maximum power dissipated in the load is (A) 300 W (B) 150 W (C) 45 W (D) 20 W

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All the rules and laws of D.C. circuit also apply to A.C. circuit containing?

1 answer 12 views

State maximum power transfer theorem for DC circuit.

1 answer 97 views

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?

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In an A.C. circuit power is dissipated in?

2 answers 38 views

Pure inductive circuit takes power from the A.C. line when?

1 answer 24 views

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

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

1 answer 19 views

Power factor of the system is kept high?

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1 answer 18 views

The benefit of power factor correction in a power system is (A) lower power consumption (B) increased demand charge (C) reduced load carrying capabilities in existing lines (D) reduced voltage profile

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Power factor of electric bulb is?

1 answer 14 views

The power factor of dielectric :  (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)

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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

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Minimum voltage regulation occurs when the power factor of the load is?

1 answer 14 views

What is the maximum value of power factor?

1 answer 28 views

If the load of the normally excited synchronous motor is increased the power factor will?

1 answer 22 views

If the field of synchronous motor is under excited, power factor will be?

0 answers 24 views

What is the use of power factor correction?

2 answers 21 views

What is the advantage of high power factor?

1 answer 118 views

Why the power factor of semiconverter is better than full converter?

1 answer 65 views

At which time power factor of the induction motor is low?

1 answer 15 views

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

1 answer 27 views

A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because?

1 answer 25 views
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A transformer has negative voltage regulation when its load power factor is   (1) Zero (2) Unity (3) Leading (4) Lagging

1 answer 44 views
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State the significance of power factor.

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The power factor of an alternator depends on?

1 answer 24 views

If we change the excitation of synchronous machine will it affect on power factor?