Interested to Buy Any Domain ? << Click Here >> for more details...
Why there is not any reactive power in DC although it causes
magnetic field.
- 7 Answers
- 22166 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
Which type of questions well asked. ?
What are the advantages of speed control using thyristor?
best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?
Is neutral transformer can be called as control transformer?
how does an encoder work???
what will happen if synchronous machine rotor fed from single phase ac supply
what is JE exam?
How to calculate cable size in HT AND LT
How much ph is maintained of water resistance starter for slipring induction motor ?
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?
what parameters should we check to reduce the power bill
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
Explain Random and Deterministic signals?
Why is the starting current high in dc motor?
wheather the size of windings in motor and generator are the same
