Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Volts shopping experience:

1. Compare - without doubt the biggest advantage that the Volts offers shoppers today is the ability to compare thousands of Volts at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Volts? Wrong! If the Volts is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Volts then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Volts? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Volts and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Volts wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Volts then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Volts site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Volts, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Volts, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

as a standard volt.The volt (symbol: V) is the SI SI derived unit of electric potential difference or electromotive force.Rudolf F. Graf, "Volt", Dictionary of Electronics; Radio Shack, 1974-75. Fort Worth, Texas. ISBN B000AMFOZY It is named in honor of the Italian people physicist Alessandro Volta (1745–1827), who invented the voltaic pile, the first modern chemical battery (electricity).

Definition The volt is defined as the potential difference across a conductor when a Electric current of one ampere dissipates one watt of power (physics). Hence, it is the base SI representation metre2 · kilogram · second-3 · ampere-1, which can be equally represented as one joule of energy per coulomb of charge, J/C.

\mbox{V} = \dfrac{\mbox{W-->{\mbox{A--> = \dfrac{\mbox{W} \cdot \mbox{s-->{\mbox{A} \cdot \mbox{s--> = \dfrac{\mbox{J-->{\mbox{C--> = \dfrac{\mbox{N} \cdot \mbox{m} }{\mbox{A} \cdot \mbox{s--> = \dfrac{\mbox{kg} \cdot \mbox{m}^2}{\mbox{A} \cdot \mbox{s}^{3-->

Josephson junction definition Since 1990 the volt is maintained internationally for practical measurement using the Josephson effect, where a conventional value is used for the Josephson constant, fixed by the 18th General Conference on Weights and Measures as

K{J-90} = 0.4835979 GHz/µV.

Hydraulic analogy In the hydraulic analogy sometimes used to explain electric circuits by comparing them to water-filled pipes, voltage is likened to water pressure – it determines how fast the electrons will travel through the circuit. Current (in amperes), in the same analogy, is a measure of the volume of water that flows past a given point, the rate of which is determined by the voltage, and the total output measured in watts. The equation that brings all three components together is: volts × amperes = watts

Common voltages



Nominal voltages of familiar sources:

• Nerve cell action potential: around 75 mV
• Single-cell, rechargeable Nickel metal hydride battery or Nickel-cadmium battery battery: 1.2 V
• Mercury battery 1.355 V
• Single-cell, non-rechargeable alkaline battery (e.g. Battery (electricity)#Common battery sizes): 1.5 V
• Lithium polymer rechargeable battery: 3.75 V
• Transistor-transistor logic/CMOS (TTL) power supply: 5 V
• PP3 battery: 9 V
• Automobile electrical system: "12 V", about 11.8 V discharged, 12.8 V charged, and 13.8-14.4 V while charging (vehicle running).
• Household mains electricity: 240 V RMS in Australia, 230 V RMS in Europe, Asia and Africa, 120 V RMS in North America, 100 V RMS in Japan (see List of countries with mains power plugs, voltages and frequencies)
• Rapid transit third rail: 600 to 750 V (see List of current systems for electric rail traction)
• High speed train overhead power lines: 25 kV RMS at 50 Hz, but see List of current systems for electric rail traction for exceptions.
• High voltage electric power transmission lines: 110 kV RMS and up (1150 kV RMS is the record as of 2005)
• Lightning: Varies greatly, often around 100 MV.

Note: Where 'RMS' (root mean square) is stated above, the peak voltage is \sqrt{2} times greater than the RMS voltage for a sinusoidal signal centered around zero voltage.

History of the volt In 1800, as the result of a professional disagreement over the galvanic response advocated by Luigi Galvani, Alessandro Volta developed the so-called Voltaic pile, a forerunner of the Battery (electricity), which produced a steady electric current (electricity). Volta had determined that the most effective pair of dissimilar metals to produce electricity was zinc and silver. In the 1880s, the International Electrical Congress, now the International Electrotechnical Commission (IEC), approved the volt for electromotive force. The volt was defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power.

Prior to the development of the Josephson junction voltage standard, the volt was maintained in national laboratories using specially constructed batteries called Weston cells. The United States used a design called the Weston cell from 1905 to 1972.

See also

• SI for unit prefixes
• SI electromagnetism units
• Voltmeter
• Watt
• Ampere
• what is RMS?

References

External links

• Google Video Lecture about Electricity and Volt by Richard A. Muller

as a standard volt.The volt (symbol: V) is the SI SI derived unit of electric potential difference or electromotive force.Rudolf F. Graf, "Volt", Dictionary of Electronics; Radio Shack, 1974-75. Fort Worth, Texas. ISBN B000AMFOZY It is named in honor of the Italian people physicist Alessandro Volta (1745–1827), who invented the voltaic pile, the first modern chemical battery (electricity).

Definition The volt is defined as the potential difference across a conductor when a Electric current of one ampere dissipates one watt of power (physics). Hence, it is the base SI representation metre2 · kilogram · second-3 · ampere-1, which can be equally represented as one joule of energy per coulomb of charge, J/C.

\mbox{V} = \dfrac{\mbox{W-->{\mbox{A--> = \dfrac{\mbox{W} \cdot \mbox{s-->{\mbox{A} \cdot \mbox{s--> = \dfrac{\mbox{J-->{\mbox{C--> = \dfrac{\mbox{N} \cdot \mbox{m} }{\mbox{A} \cdot \mbox{s--> = \dfrac{\mbox{kg} \cdot \mbox{m}^2}{\mbox{A} \cdot \mbox{s}^{3-->

Josephson junction definition Since 1990 the volt is maintained internationally for practical measurement using the Josephson effect, where a conventional value is used for the Josephson constant, fixed by the 18th General Conference on Weights and Measures as

K{J-90} = 0.4835979 GHz/µV.

Hydraulic analogy In the hydraulic analogy sometimes used to explain electric circuits by comparing them to water-filled pipes, voltage is likened to water pressure – it determines how fast the electrons will travel through the circuit. Current (in amperes), in the same analogy, is a measure of the volume of water that flows past a given point, the rate of which is determined by the voltage, and the total output measured in watts. The equation that brings all three components together is: volts × amperes = watts

Common voltages



Nominal voltages of familiar sources:

• Nerve cell action potential: around 75 mV
• Single-cell, rechargeable Nickel metal hydride battery or Nickel-cadmium battery battery: 1.2 V
• Mercury battery 1.355 V
• Single-cell, non-rechargeable alkaline battery (e.g. Battery (electricity)#Common battery sizes): 1.5 V
• Lithium polymer rechargeable battery: 3.75 V
• Transistor-transistor logic/CMOS (TTL) power supply: 5 V
• PP3 battery: 9 V
• Automobile electrical system: "12 V", about 11.8 V discharged, 12.8 V charged, and 13.8-14.4 V while charging (vehicle running).
• Household mains electricity: 240 V RMS in Australia, 230 V RMS in Europe, Asia and Africa, 120 V RMS in North America, 100 V RMS in Japan (see List of countries with mains power plugs, voltages and frequencies)
• Rapid transit third rail: 600 to 750 V (see List of current systems for electric rail traction)
• High speed train overhead power lines: 25 kV RMS at 50 Hz, but see List of current systems for electric rail traction for exceptions.
• High voltage electric power transmission lines: 110 kV RMS and up (1150 kV RMS is the record as of 2005)
• Lightning: Varies greatly, often around 100 MV.

Note: Where 'RMS' (root mean square) is stated above, the peak voltage is \sqrt{2} times greater than the RMS voltage for a sinusoidal signal centered around zero voltage.

History of the volt In 1800, as the result of a professional disagreement over the galvanic response advocated by Luigi Galvani, Alessandro Volta developed the so-called Voltaic pile, a forerunner of the Battery (electricity), which produced a steady electric current (electricity). Volta had determined that the most effective pair of dissimilar metals to produce electricity was zinc and silver. In the 1880s, the International Electrical Congress, now the International Electrotechnical Commission (IEC), approved the volt for electromotive force. The volt was defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power.

Prior to the development of the Josephson junction voltage standard, the volt was maintained in national laboratories using specially constructed batteries called Weston cells. The United States used a design called the Weston cell from 1905 to 1972.

See also

• SI for unit prefixes
• SI electromagnetism units
• Voltmeter
• Watt
• Ampere
• what is RMS?

References

External links

• Google Video Lecture about Electricity and Volt by Richard A. Muller

Volts The No1 Scottish AC/DC Tribute
Volts are Scotland s No1 AC/DC tribute band performing a live nonstop 2 hr Rock N Roll extravaganza that will blow your head of your shoulders!

The Volts new British Rock band
the volts classic British Rock Music, a Retro sounding band with a modern edge

12 Volts home page
12 Volts is a Gloucestershire based company that supplies and fits vehicle accessories to cars and light commercial vehicles.

Volt - Wikipedia, the free encyclopedia
... by the water flow is equal to flow rate times pressure, just as the power dissipated in a resistor is equal to current times the voltage drop across the resistor (amperes x volts ...

The Volts Show
music should be driven and not controlled

The Volts Show Links
Original & The Best....." www.thevoltsshow.com

VOLTS - Definition by AcronymFinder
sort results: alphabetical | rank ? Rank Abbr. Meaning ** VOLTS: Video Online Lottery Terminators Society * VOLTS: Volunteer Training and Support Program (Macomb, IL)

Vehicle Auto Electrical Diagnostics Engineer Dorset Wiltshire
Volts Auto Electrical Service Diagnostic faults Blandford Dorset Wiltshire Hampshire car

The 2.4 Volt Experiment
What was once here is no longer. It has been lanced like a boil on the foot of a fat man! Adios.

Volts - Hutchinson encyclopedia article about Volts
volt. SI unit of electromotive force or electric potential (see potential, electric). A small battery usually has a potential of one or two volts; the domestic electricity supply ...