Volt Topics

• electrical congress
• alessandro volta
• physicist alessandro
• voltaic pile
• international electrotechnical commission
• voltage difference
• international electrical
• current times
• potential difference
• voltage drop
• power dissipation
• 1880s
• water flow
• ampere
• resistor
• lombard
• volts
• analogy
• conductor

Related Images

Source

del.icio.us Tags

• wikipedia
• units
• volts
• utility
• array
• eolia08
• solar
• reference

Volt, Volt

It is named in honor of the Lombard physicist Alessandro Volta (1745–1827), who invented the voltaic pile, possibly the first chemical battery (see Baghdad Battery).

The analogy extends to power dissipation: the power given up 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 = watts).

In the 1880s, the International Electrical Congress, now the International Electrotechnical Commission (IEC), approved the volt as the unit for electromotive force. At that time, the volt was defined as the potential difference what is nowadays called the "voltage (difference)" across a conductor when a current of one ampere dissipates one watt of power.

Source: Wikipedia > Volt