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?
Answer Posted / smita
RIGHT POWER IS VOLTAGE X CURRENT BUT FROM THIS WE GET ONLY
APPERENT POWER,AND WE REQIRE REAL POWER I.E VOLTAGE X
CURRENT X POWE3R FACTOR AND FOR THAT WE REQUIRE WATTMETER
Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
what is p.s impedance measurement test in earthing transformer?
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
Which standard we are following earthing resistance test
THERMAL CAPACITANCE IS MEASURED IN..................................................
How much earthing frequency is capable?
When we giving the 3 phase supply to ups system how to coming netural?
if i am in front of transmission line how to know that current direction without any equipment
What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?
Why are the cores of large transformers built up of circular transactions ?
What is the difference between isolators and electrical circuit breakers? What is bus-bar?
How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?
what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth
where is core-type and shell-type construction suitable for transformers ?
What would be the size of wire used for 2 Ton of window A.C?
What is oscillator circuit?