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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 SI unit used to express power is the watt (W).
If a lamp bulb is rated at 100 watt why is a time factor not in the rating?
The wattage rating of a lamp bulb is a measure of the power it consumes, not the duration it operates for. The rating tells you how much power the bulb will use when it is in operation, but it does not provide information about how long the bulb will last before needing to be replaced.
Does a high watt bulb give more energy than a low watt bulb?
No, the wattage of a bulb does not determine the amount of energy it gives off. Wattage measures the amount of power the bulb consumes, not the amount of light or energy it emits. The brightness of a bulb is more related to its lumens output, which is a measure of visible light.
What is the SI unit and symbol for power?
The SI unit for power is the watt, symbolized as W.
What is the different between a 100 watt bulb and a 60 watt bulb?
40 watts of consumed power. The light output may be greater with one compared to the other, but wattage alone does not give us that information. Electric heaters, for example, consume 1500 watts of power and produce almost no visible light.Check the Lumen's. That is where the difference is.Current draw and light output.A 60 watt bulb uses 60 watts of electricity (i.e. it converts 60 joules of energy per second), a 100 watt bulb converts 100 joules per second. Electrical power is measured in watts. Since a 60 watt bulb pulls less energy to it than a 100 watt bulb the 60 watt bulb will not be as bright.Resistance.Just in the amount of power used and the brightness of the bulb. The 60 watt bulb might be a bit smaller.
What is the unit to express power is the?
the unit used to express power is time
What SI unit is used to express power?
The SI unit used to express power is the watt (W).
The unit used to express power is called?
The unit used to express power is called the watt (W). Power is the rate at which energy is transferred or converted.
What unit is used to express electrical power?
Electrical power is also measured in Watts.
What is a word for unit of power?
A "watt" is a derived unit of power.
If a lamp bulb is rated at 100 watt why is a time factor not in the rating?
The wattage rating of a lamp bulb is a measure of the power it consumes, not the duration it operates for. The rating tells you how much power the bulb will use when it is in operation, but it does not provide information about how long the bulb will last before needing to be replaced.
Does a high watt bulb give more energy than a low watt bulb?
No, the wattage of a bulb does not determine the amount of energy it gives off. Wattage measures the amount of power the bulb consumes, not the amount of light or energy it emits. The brightness of a bulb is more related to its lumens output, which is a measure of visible light.
Is a watt a light bulb?
A 60 watt light bulb is a light bulb with 60 watts capacity. When talking about watts, you're talking about the power that is transferred from the appliance to the accessories. Therefore, the light bulb labeled "60 watts" takes 60 watts to light up. A 60 watt light bulb will not be as bright as a 120 watt light bulb.
Is a watt a unit of power or a unit of electrical energy?
A watt is a unit of power. Power measures the rate at which work is done or energy is used. Electrical energy is typically measured in watt-hours or kilowatt-hours.
What is the SI unit and symbol for power?
The SI unit for power is the watt, symbolized as W.
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.
Is watt a unit of energy?
No, a watt is a unit of power, not energy. Energy is typically measured in watt-hours or joules. A watt is equivalent to one joule of energy per second.
