# What unit of electrical power is used to measure how fast electrical energy is used?

**Power** is measured in **watts**, the rate at which
energy is consumed -in SI, a special name for the joule per
second.

### What is the difference between power and electricity?

I think you probably mean between power and current? The electrical state of a circuit is expressed in volts and amps. The power is given by (volts x amps) and is in Watts. ---- Power is a measure of how fast work is being done or how fast energy is being expended. For example, you must produce more power to ride a bike at 20 mph than you do to ride it at 5 mph…

### How many watts are 4680000000joules?

Watts are a measure of power, Joules are a measure of energy. The energy is equal to the power times the time. So if you have a power of 5 watts running for 7 seconds, that is 5x7 Joules of energy, or 35 Joules. Looked at another way, power measures how fast energy is converted. So 35 Joules converted in 7 seconds would be 5 watts of power, but it would need 35 watts to…

### What is the unit for measuring electrical power?

Electrical power is measured in watts. Answer Power is measured in watts. There is no such thing as 'electrical power' as power is simply a rate. volt The basic unit of electrical power is the watt. If the power is very large, then kilowatts (thousands of watts) or megawatts (millions of watts) are also used. Power is simply a rate, so you cannot really have 'electrical' power, 'mechanical' power, etc. In the SI system of…

### How much electrical power does it take to boil 1 gallon of water?

1). You don't mean 'power'. You mean 'energy'. 'Power' is the rate at which the you pump the energy into the water. You can put it in fast (high power), or you can put it in slow (low power). The total amount of energy it takes will be the same either way, but it'll take longer at low power. You don't pay the electric company for power (kilowatts). You pay them for energy (kilowatt-hours). 2)…

### How much voltage does an electric iron takes?

Electrical devices are built to work with the voltage in your home. All electrical devices use the same voltage, which is either somewhere around 110 V (in some regions) or somewhere around 220 V (in others). Please note that "voltage" is not the same "power", the measure of how fast energy is used. Power (in watts) is basically the product of voltage (in volts) and current (in amperes). Different devices use the same voltage; but…

### How is electric power generated by running water?

== == Think of an electric motor. When the power is turned on, a magnetic field is created which turns the shaft. This is entirely reversible. If you could turn a shaft fast enough artificially, you would generate electricity. This process is the concept behind hydroelectric power. Water coming through a dam turns the rotors of a massive turbine which generates power. Moving water can be used to produce energy because potential energy can be…

### Why does my 110 volt plug test 167 volts?

This depends on where the power is coming from - and how you are measuring it. If the power is coming from an auxiliary generator, the generator's motor is running too fast. If the power is coming from the electrical company: (a) You might be using a poorly calibrated meter to measure it (you are getting the wrong answer from the meter) OR (b) You have a true problem with your electrical power and need…

### How many watts can a wind turbine produce in a day and how many houses can that power?

Watts measure power, which is how fast energy is produced or consumed. There are many wind turbines around that are rated at 3 Megawatts, or 3 million watts. Obviously when there is no wind they don't produce power and an alternative energy source is needed as a backup. 3 Megawatts is enough to feed 1000 houses in Europe.

### What is the difference between power and work?

Work is how much energy is transferred, measured in Joules. Power is how fast or slow the work is transfered, measured in Joules per second. One joule per second is called one Watt of power. This meams a 60 Watt light bulb converts 60 joules of electrical energy into roughly 15 joules of light and 45 Joules of heat every second its switched on for.

### What is the difference between a unit and a watt of electricity?

A Unit is a measure of energy used in billing. A Watt is a measure of power, which is how fast energy is converted. Energy equals power times time, so 1 watt for 1 second defines 1 Joule of energy. A Unit is a kilowatt-hour of energy, so 1000 watts for 3600 seconds, 3.6 million Joules. Another Answer A 'unit' is derived from the expression, 'Board of Trade Unit'. The Board of Trade was the…

### What is the watts equivalent of 231000 joules?

231,000 joules is an amount of energy, while watts are a measure of how fast energy is used or converted. 231,000 joules could be used by 1 watt running for 231,000 seconds, or 231 watts running for 1000 seconds, etc. Energy = power x time, so 1000 watts for 231 seconds is an amount of energy equal to 231,000 joules.

### What are the devices that convert energy from one form to another?

Here are a few examples: Engines (gasoline, diesel, gas turbine) - Convert chemical energy to mechanical energy. Electric motors - Convert electrical energy to mechanical energy. Wind turbines - Convert the kinetic energy of wind into mechanical energy (which is then commonly turned into electrical energy by a generator hooked to the turbine). A light bulb - Turns electrical energy into light and heat. A wood stove - turns chemical energy into heat (and a…

### Define voltage current and resistance?

Voltage is the electrical pressure in a circuit Amperes (amps) are the measure of electrical current in a circuit Ohms are the measurements of resistance in a circuit Current is essentially how fast electrons are moving in a circuit Resistance is what impedes the electrical current, and can be found in the wire or various loads in a circuit Hope this helps!

### Why is boiling water a Heat Energy?

Heat energy is a measure of how fast particles of matter are vibrating. As more energy goes into the matter, the particles vibrate faster. At some point (it is different for each material) the particles move fast enough to change phase. When water boils, the particles change state from liquid to gas.

### What are the feature of good engine?

A good engine is an efficient one. An engine converts energy in one form to energy in another form. How fast that happens is measured by the power. If a joule of energy is converted every second, that is a power of 1 watt. If you measure the power of the energy put into the engine, and the power coming out, then divide one into the other, that is called the efficiency, usually a percentage…