Kilowatt hours class 10 | prove that 1kwh = 3.6MJ | punjab, federal, kpk, balochistan, sindh board

Kilowatt hours 10th physics chapter 14 | prove that 1kwh = 3.6MJ | urdu hindi | atif ahmed Official

Kilowatt-Hour
Electric energy is commonly consumed in very large quantity
for the measurement of which joule is a very small unit.
Hence, a very large unit of electric energy is needed which is
called kilowatt-hour. It is defined

The amount of energy delivered by a power of one kilowatt in
one hour is called kilowatt-hour.
One kilowatt-hour1 kWh= 1000 W ×1 hour
=1000 W × (3600 s)
5
= 36 × 10 J=3.6 M J
The energy in kilowatt-hour can be obtained by the following
formula:
The amount of energy in kilowatt-hour
The electric meter installed in our houses measures the
consumption of electric energy in the units of kilowatt-hour
according to which we pay our electricity bills. If the cost of
one kilowatt-hour i.e., one unit is known, we can calculate
the amount of electricity bill by the following formula:
Cost of electricity = number of units consumed × cost of one unit
Example 14.8: Calculate the one month cost of using 50 W
energy saver for 8 hours daily in your study room. Assume
that the price of a unit is Rs. 12.
Solution:Given that, Power = 50 W = 0.05 kW, time = 8 hours
Number of units consumed = 8 × 30 × 0.05 =1
10th class physics chapter 14 Kilowatt hour

Kilowatt hour 10th class physics
Kilowatt hour 10th physics

[sherazkhan-rqgg]

Well done ✅ sir. guys keep learning from sir atif

[shahmeermalik]

May god give you long, happy, and healthy, and more successful life❤

[kuiucer]

Thanks a lot perfect lecture dilevered mashallah

[eijvoqz]

Thankyou sir this lecture is very helpful 😊

[sherazkhan-rqgg]

Buhut achi smj aye schools open honey say pahlay AP say buhut kuch Sika thank very much.

[roniacheema]

Assalam o Alaikum sir....plz upload next chapter videos ...nd plz guide us about every topic that if it's sq then how much we have to write ? Nd it's ur students humble request to upload videos as soon as possible 🙂

[izazuddin.]

Sir you are the best teacher 👍👍 I have a lot learning from you thank you sir

[abshamsheikh]

Sir your lectures are really helpful for me in lockdown

[emaansohail]

What is the difference between Electric current, electric energy, electric power??

[noorkafeel]

Sir can you explain me that how to find amount of electricity bill ? With example

[khanzadanadeem]

Sir plzzz aap find kar k bataye takay tariqa samajh aa jaye k electricity bill kese find kar sakte hain

[sherazkhan-rqgg]

Ustad baadsha Ni houta Bal k baadsha banata hay

[mehrunnisa]

Sir although ap Acha tarika sa padhate ho mgr ap ka lessons effective is liya nahi hota ka ap board ko tayar karka phir parhata ho ap ko smjhate waqt likhna chahiya. It was a suggestion from my side and I hope that you will consider it.

[ibadkhan]

Sir formula mai ye divide wla 1000 kisy aya

[haiqausman]

Sir ye formula me 1000 kahan se aya???

[SalmanKhan-ylps]

sir 1hour me 1 kwh energy puhuncta hay

[mianaliraza]

cost of unit ki smjh nhi i plz ek br phir bta den sir

[sapnalaila]

Sir plz toora ziada upload karna QK schools kholne k davran to school ki study hoti