what is the relation b/w KW and KWH? plz explain with
example.
- 6 Answers
- 11908 Views
- FAG, I also Faced
- E-Mail Answers
Answer Posted / sameer
Watt is the unit of power.
1 Watt = 1 Joule per second i.e. when energy of 1 joule is
consumed in 1 second, then the corresponding power is 1
watt.
Thus, a bulb of 60 watts consumes 60 Joules per second.
KWH (or WH) is nothing but the measure of the actual energy
consumed in Joules per hour...how???
This is how ==>> Watt Hour = Watt X Unit of time
= Joules/Seconds X seconds
= Joules
So, bascially, 100 watt hour = 100 joules/second x 3600
seconds = 360000 Joules i.e. in 1 hour, the 100 watt bulb
has consumed 360000 Joules of enegy.
This is the reason, why electricity companies mention the
watt-hours consumed by the consumer in the bill.
Basically, they are calculating the 'energy consumed' in
the particular month and then charging you a specific rate
for it in terms of Rs. XYZ per unit (of energy).
To give an analogy, watt can be looked upon as the speed of
a car (lets say a taxi)and the watt-hour can be looked upon
as the actual distance travelled. Thus, you might travel at
100 miles per hour or at 50 miles per hour or at different
speeds...but the taxi driver will charge you for the final
distance travelled and not for the speed at which you
travelled.
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
What are gain margin and phase margin?
What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?
63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?
What is the need for a controller?
oltc of a transformer, how it works? and what are the equipment consist of describe briefly?
write down the formula of cable size in RM if current is 50Amp.
why power not passes in plastic and rubber material
how to find the Motor,s insulation Power?
rajha power sector details
Merits & Demarits of Oil circuit & Air circuit breakers ?
wat is d diffr btw shunt coil and trip coil in VCB?
why the active power flow of some line is increased when the active power of out is cut ?
why ht cable end termination don't have a gland?
Do closed loops systems require manual input?
what is the difference between torque induced and torque load?compare them with respect to dc motor?
