Ampere (English)
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Definition (keystage 3)
A unit of electrical current. One ampere flowing in two straight, thin, parallel, infinitely long conductors, 1 metre apart in a vacuum, would produce a force of 2 ×10−7 Newtons per metre of length between the conductors. Ampere is often abbreviated to amp. The symbol for the unit is A.
Definition (undergraduate level)
The unit of electrical current. It is abbreviated A, and sometimes amp.
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