Interested to Buy Any Domain ? << Click Here >> for more details...
power is the product of voltage and current.so we can
measure the value of power just by using ammeter and
voltmeter.......then why do we use a wattmeter?
- 5 Answers
- 9681 Views
- I also Faced
- E-Mail Answers
Answer Posted / nageshwaran.n
No doubt, we could use Voltmeter & Ammeter for calculating
Power but only Apparent Power that too at that instant.
Apparent power = voltage X current,
Actual RMS Power (real power) = voltage X current X power
factor
And to measure real power we need Wattmeter only.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?
What is meant by earthhing of a magnetic flow meter and when to use empty pipe detection?
Testing procedure of DG alternator stability test
What are the necessary components of the feedback control system?
working of diesel generator ?
The shot circuit in any winding of transformer result? Explain
I need model question papers for RRB section engineer Chennai... Please send to my E-mail Id:- maitheerainbow@gmail.com
What is big transformer parts and their function ? Ty
why only exciting current is shown not primary current in transformer???
what are the main applications of transistor in non-linear region?
What is Auto Mains Failure Panel & Auto Synchronizing Panel
how to calculate the earth mat design in 132 kv substation yard ????
what is static frequency converter?what is the function...of sfc...?
How to find ampere on ht side for selection of cable size ???
how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)
