Interested to Buy Any Domain ? << Click Here >> for more details...
In a d.c current, the power is the product of voltage and
current. This relationship does not always apply to
effective(r.m.s) values in an a.c circuit. Explain the
reason for this.
- 2 Answers
- 6418 Views
- I also Faced
- E-Mail Answers
Answer Posted / prosenjit majumder
In a DC circuit the power is the product of current and
voltage . Because in a DC circuit current and voltag
waveform always in a same phase . But in a AC circuit the
current and voltage may not be always in same phase .
Depending upon load (either inductive or capacitive ),
current and voltage waveform varies from each other. If
load is resistive then power is denoted by watt. If load is
capacitive or inductive then it is denoted by va .Here
power factor does matter .
| Is This Answer Correct ? | 5 Yes | 4 No |
Post New Answer View All Answers
What is the application of Dyn1 and Dyn11 vector group of transformer?
What is a commutator?
what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada
What is the drawback of class b amplifier?
What are the two segments of nyquist contour.
What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?
Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?
state the disadvantages of carbon filament???
Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?
Graphs of measuring power and speed on dc motor
For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?
What is a DC series motor?
what you have to see after one week or month from the day of installation of transformer ?
defination of lines
Refernce currents are to be generated using refernce cueernts how can this be done
