Why there is not any reactive power in DC although it causes
magnetic field.
- 7 Answers
- 20036 Views
- I also Faced
- E-Mail Answers
Answer Posted / ran145
In an AC circuit whose impedance consists of reactance as
well as resistance, the voltage and current are not in phase.
when there is reactance in an AC circuit, the product Erms
Irms is greater than the true power. The excess is called
reactive power.
In DC impedance is a pure resistance hence the voltage and
current are in phase which produces true power
i.e.P=Erms*Irms . hence there is no reactive power in DC.
| Is This Answer Correct ? | 30 Yes | 4 No |
Post New Answer View All Answers
What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?
what are problems caused by the pdu in rack server
what is the effect of back reactive power on the generator ?
i am studying in final year can i allowed for 23rd UES of Indian army
Explain the difference between verilog task and verilog function?
What will be result if we connect LT votage to the terminal of HT motor?
what is the difference between ups & inverter
Classify drilling machines.
How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.
where lt & ht capacitor used
why ht cable end termination don't have a gland?
What is pi controller?
What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
what is the meaning of impedance protected in instrument cooling fan
