Ampere and voltage

AMPERE (A) is a unit of electrical current.
Example:
The current through the light blub is 10 Ampere.
Current = 10A
Similar to:
The Man is 190cm tall
Height = 190cm

VOLTAGE is the Electrical Potential Difference between two points. It unit is Volt (V). Higher the voltage, stronger tendency to create current.
Example:
The voltage arcoss the light blub is 220V
Voltage = 220V

Although they are both technical term of Physics, the are different things.

2008-12-02 22:35:15 補充：
This explaination is a little bit stupid to show Voltage and Ampere can not be compared. Just like what the different between Length and Liter is.

2008-12-02 22:42:46 補充：
What is "nonsense" refer to?

nonsense

Ampere:

The ampere, in practice often shortened to amp, (symbol: A) is a unit of electric current, or amount of electric charge per unit time, in coulombs per second. The ampere is an SI base unit, and is named after André-Marie Ampère, one of the main discoverers of electromagnetism.

One ampere is defined to be the constant current which will produce an attractive force of 2×10–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum.[1][2] The definition is based on Ampère's force law.[3] The ampere is a base unit, along with the metre, kelvin, second, mole, candela and the kilogram: it is defined without reference to the quantity of electric charge.

The SI unit of charge, the coulomb, "is the quantity of electricity carried in 1 second by a current of 1 ampere.".[4] Conversely, a current of one ampere is one coulomb of charge going past a given point per second:


that is, in general, charge Q is determined by steady current I flowing for a time t as:


Voltage:

Electrical tension (or voltage after its SI unit, the volt) is the difference of electrical potential between two points of an electrical or electronic circuit, expressed in volts.[1] It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor. Depending on the difference of electrical potential it is called extra low voltage, low voltage, high voltage or extra high voltage. Specifically, voltage is equal to energy per unit charge.[2]

2008-12-02 17:36:08 補充：
Between two points in an electric field, such as exists in an electrical circuit, the difference in their electrical potentials is known as the electrical potential difference. This difference is

2008-12-02 17:36:16 補充：
proportional to the electrostatic force that tends to push electrons or other charge-carriers from one point to the other. Potential difference, electrical potential, and electromotive force are

2008-12-02 17:36:19 補充：
measured in volts, leading to the commonly used term voltage. Voltage is usually represented in equations by the symbols V, U, or E. (E is often preferred in academic writing, because it avoids the confusion between V and the SI symbol for the volt, which is also V.)