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Look watt = joule / seconds
joule = newton * metre
newton = kilogram * acceleration
acceleration = velocity / seconds
velocity = metre / seconds
Therefore watt = ( kg * m^2 ) / s^3 where kg is kilogram, m is metre and s is seconds
In CGS units unit of power is ( g * cm^2 ) / s^3
As 1 kg = 1000 g and 1 m = 100 cm
100 watt = 100 ( kg * m^2 ) / s^3 = ( 100 * 1000 g * 100^2 * cm^2 ) / s^3 = 1000000000 ( g * cm^2 ) / s^3
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What SI unit is used to express power?
the answer for the si unit of power is the watt or w
If a lamp bulb is rated at 100 watt why is a time factor not in the rating?
The unit watt is defined as energy per unit time. Thus a 100W light bulb consumes 100J of energy each second. Joules are a unit of energy. Watts are a unit of power.
Does a high watt bulb give more energy than a low watt bulb?
More watts means it uses more energy per second (watt is a unit of power). If it is a light-bulb of the same type of technology, the higher-watt light bulb would also give off more light.
What uses more energy a 60 watt light bulb or 18 watt light bulb?
This depends on how long it is being used. The 60 Watt bulb consumes 2.6667 times the power of an 18 Watt bulb, but energy equals power times time. There is also an amount of 'hidden' energy: the energy to manufacture and transport the bulb. This depends on how long it is being used. The 60 Watt bulb consumes 2.6667 times the power of an 18 Watt bulb, but energy equals power times time. There is also an amount of 'hidden' energy: the energy to manufacture and transport the bulb.
How much power does a 5 watt bulb use?
The bulb uses 5 watts of power.
What is the unit to express power is the?
the unit used to express power is time
What unit is used to express electrical power?
Electrical power is also measured in Watts.
What SI unit is used to express power?
the answer for the si unit of power is the watt or w
If a lamp bulb is rated at 100 watt why is a time factor not in the rating?
The unit watt is defined as energy per unit time. Thus a 100W light bulb consumes 100J of energy each second. Joules are a unit of energy. Watts are a unit of power.
Does a high watt bulb give more energy than a low watt bulb?
More watts means it uses more energy per second (watt is a unit of power). If it is a light-bulb of the same type of technology, the higher-watt light bulb would also give off more light.
Is a watt a unit of power or a unit of electrical energy?
Watt is a unit of power. 1 Watt = 1 Joule/second; joule is the unit for energy.
When did James watt invent light bulb?
James Watt did not invent the light bulb. Thomas Edison is regarded by most people to have invented it. There were other similar ideas to the light bulb before Edison, however, it was his superior design and set up of entire electrical lighting systems that brought fame and popularity to his bulb. James Watt, is responsible for giving us the unit of measuring power that is his name (watt). The unit is derived by extending on Ohms law, to include that Voltage (e) times Amperage (i) = power.
What is a word for unit of power?
A "watt" is a derived unit of power.
What is the unit to power?
watt
What uses more energy a 60 watt light bulb or 18 watt light bulb?
This depends on how long it is being used. The 60 Watt bulb consumes 2.6667 times the power of an 18 Watt bulb, but energy equals power times time. There is also an amount of 'hidden' energy: the energy to manufacture and transport the bulb. This depends on how long it is being used. The 60 Watt bulb consumes 2.6667 times the power of an 18 Watt bulb, but energy equals power times time. There is also an amount of 'hidden' energy: the energy to manufacture and transport the bulb.
The watts in a light bulb named after James Watt?
The watt was named after James Watt. The term watt in electric appliances refers the rate at which energy is generated or consumed and therefore is measured in units (e.g. watts) that represent energy per unit time. An example; when a light bulb with a power rating of 100W is turned on for one hour, the energy used is 100 watt hours (The watt second is a unit of energy, equal to the joule).
What unit of measurement represent true power?
The unit of measurement that represents true power is the watt (W).
