Question

Define the following:
One watt of power
One kilowatt Hour
Average power​

Answer 1

$\huge\underline\red{\sf Power :-}$

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★ What is Power ? ★

→ The rate of doing work or transferring heat is known as Power

★ SI unit of Power ★

• Watt ( Denoted by w) or joule per second (j/s)

★ CGS unit of power ★

• In CGS system its SI unit is Horsepower ( denote by hp)

★ Formula ★

• P = W / ∆t ( P= Power , W = work done and ∆t = Elapsed time)

★ One Watt of Power ★

• One watt is the power of an agent which does work at the rate of 1 joule per second.

or,

• Power will be one watt when the rate of consumption of Energy will be one joule per second

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$\huge\underline\red{\sf OneKilowattHour :-}$

★ One Kilowatt Hour ★

• 1 kWh can be defined as the amount of electrical energy consumed when a 1000 watt electrical appliances are used for an Hour

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$\huge\underline\red{\sf AveragePower :-}$

★ What is Average Power ? ★

• Average Power is defined as the ratio of total work done by the body to the total time taken by the body

★ Formula for finding Average Power★

• F = V2 / R ( 'v' replaces the rms voltage)

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Answer 2

$\Large\underline\mathbb{\green{POWER :-}}$

$\bullet$ Power is the capacity to do work.

$\bullet$ Electric power is the rate of electrical energy consumed.

$\bullet$ The S.I. unit is watt.

$\Large\underline\mathbb{\green{ONE \: WATT \: OF \: POWER:-}}$

$\bullet$ 1 watt : When an electrical appliance consumes electrical energy at rate of 1 joule per second, its power said to be 1 watt.

$\bullet$ $\sf\ 1 \: watt = \frac{1 \: joule}{1 \: second}$

$\bullet$ The power of 1 watt is a rate of working of 1 joule per second.

$\Large\underline\mathbb{\green{ONE \: KILOWATT \: HOUR :-}}$

$\bullet$The commercial unit of energy is Kilowatt - hour.

$\bullet$ One Kilowatt - hour is the amount of electrical energy consumed when an electrical appliance having a power rating of 1 Kilowatt is used for 1 hour.

$\Large\underline\mathbb{\green{ AVERAGE \: POWER :-}}$

$\bullet$ Average power is the total work done divided by total time.

$\bullet$ $\bf\ Average \: power = \frac{Total \: power}{Total \: time}$