What is the difference between Watt and Volts?

Answer 1

Watt
Is a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm

Volt
Is a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it

Answer 2

Watts = Volts x Amps
Watts is a unit of power having the dimensions (energy per unit time):
M L2 / T2 divided by T = M L 2 / T 3
Note: A kilowatt-hour is a 1000 watts times one hour = an energy unit.
Volt is a unit of force (F=ma):

Amps, Volts, Watts, Ohms
ohm ... watt amp volts?

I
can never remember the difference between watts and amps so I am making this page so that when I forget I can just read it again. (No Lie ;o)

Watts = Volts x Amps
Watts is a unit of power having the dimensions (energy per unit time):
M L2 / T2 divided by T = M L 2 / T 3
Note: A kilowatt-hour is a 1000 watts times one hour = an energy unit.
Volt is a unit of force (F=ma):

ML / T2
So that Amps have the dimensions:
L / T

Now, this is a velocity? What is going on here? This begs some explanation.

I was unable to find an explanation on the web after two hours of searching. There are too many documents on the web with the same "overview" type information. So I did what I usually do & figured it out myself.
The true "dimension" of amperage is, of course, 1 / T , i.e. "x" number of electrons pass through a wire in so many seconds. The extra L we need to make power (ML2T -3) is the length of the wire which is left out of the calculation because it is held "constant" for the pupose of teaching. So if you screw in a 100 watt bulb the little filament in the bulb is a constant as is the length of your household wiring. Now if you increase the length of the filament ( - + - ) you increase the wattage of the bulb (like screwing in another 100 watter) ... but ... if you put two filaments together ( = ) you get less resistance instead of more wattage. And less resistance means lower wattage.

The complete equation for watts is:


Watts = Volts x Amps x k(one unit length of wire)
If you have a current running in some wire, it has some length ... get it? ... but since this is true in any case whatsoever, why put it in the equation? So, if I double this "any" length, does the power consumption go up to double? Yes, even if there is no light bulb on it ... but the amps and volts remain the same? Yes, the voltage will remain the same ... if you're talking about the power company. They will ramp up their power output to match demand. If too many people put too much "extra lengths" in the circuit ... and they can't ramp up ... you get a "brown out" which is, lowered voltage.




ML / T2

Answer 3

Although other answers are close, the difference is watts measure the amount of power used by a circuit. For instance, a 40 watt light bulb. Voltage is a measure of how many electrons are moving and current measures the speed of that movement. A 9 volt battery has 9 volts of electrons available for powering a device.

Answer 4

The watt (symbol: W) is the SI derived unit of power, equal to one joule per second. A human being climbing a flight of stairs is doing work at the rate of about 200 watts; a trained athlete can work at up to 900 watts for short periods. An automobile engine produces work at a rate of around 100 000 watts (approximately 134 horsepower).
The watt is named after James Watt for his contributions to the development of the steam engine, and was adopted by the Second Congress of the British Association for the Advancement of Science in 1889
The volt (symbol: V) is the SI derived unit of electric potential difference or electromotive force [1]. It is named in honor of the Italian physicist Alessandro Volta (1745–1827), who invented the voltaic pile, the first chemical battery
The volt is defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power. Hence, it is the base SI representation m2 · kg · s-3 · A-1, which can be equally represented as one joule of energy per coulomb of charge, J/C.

Answer 5

Watts is a measure of electrical usage ( like a 60 watt light bulb, or a 1500 watt hair drier ), while volts is a measure of electricity that is provided 110/220 - 277/480 etc. depending on the equipment being used and use a "transformer" to change one voltage into another to supply what is needed.

Answer 6

Watt is unit of power ie rate of flow of energy
1 watt = 1 Joule / sec { Joule is unit of work}

Volt is unit of Electro Motive Force (emf)
same current can flow at diffent voltage hence providing different power.
Analogous to pressure of water flowing in a pipe

1 watt = 1 volt X 1 ampere

Answer 7

Watts = Quantity of electrical energy flowing per second or energy flow = electrical POWER.

Volts = One volt is the force required to send one ampere of electrical current through a resistance of one ohm

WATTS = VOLTS x Amps
P = V x I

or P = VI is the relationship.

Hope this helps.

Answer 8

WATT : A unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm. THIS IS UNIT OF POWER
VOLTS :A unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it. THIS IS UNIT OF ELECTRIC POTENTIAL DIFFERENCE

Answer 9

A Watt is the derived SI unit of power (1 Joule per second). It is a measure of the amount of work done per unit time.

A volt is the derived SI unit of electrical potential (1 Watt per ampere). It is the amount of potential exhibit across two conductors when one Watt is dissipated by one ampere of current).

volts x amperes = Watts.

Answer 10

The three most basic units in electricity are voltage (V), current (I) and resistance (r). Voltage is measured in volts, current is measured in amps and resistance is measured in ohms.

There is a basic equation in electrical engineering that states how the three terms relate. It says that the current is equal to the voltage divided by the resistance.

I = V/r

Electrical power is measured in watts. In an electrical system power (P) is equal to the voltage multiplied by the current.


P = VI

In an electrical system, increasing either the current or the voltage will result in higher power.