Sentence examples for ampere from inspiring English sources
noun
A unit of electrical current, the standard base unit in the International System of Units. Abbreviation: amp, Symbol: A
- Definition: The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10–7 newton per metre of length. (The International Bureau of Weights and Measures)
Thus, the power delivered by the battery (in watts) is Using the values i = 0.2 ampere and Va − Vd = 12 volts makes dW/dt = 2.4 watts.
This system proposed as units of scientific measurement the metre, kilogram, second, and joule and was endorsed in 1960 by the General Conference of Weights and Measures (with the ampere instead of the joule as the unit of energy).
It is equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere (1Ω = 1 V/A); or, the resistance in which one watt of power is dissipated when one ampere flows through it.
If a current changing at the rate of one ampere per second induces an electromotive force of one volt, the circuit has an inductance of one henry, a relatively large inductance.
For a segment of length and orientation dl that carries a current i, In this equation, μ0 is the permeability of free space and has the value of 4π × 10−7 newton per square ampere.
Volt, unit of electrical potential, potential difference and electromotive force in the metre kilogram second system (SI); it is equal to the difference in potential between two points in a conductor carrying one ampere current when the power dissipated between the points is one watt.
The unit of current is the ampere (A); one ampere equals one coulomb per second.
Typical small diodes will conduct about 0.1 ampere with roughly a 1.5-volt forward bias, and they will withstand 100 or more volts with negligible current flow in the reverse direction.
In comparison, the current in a typical light bulb is 0.5 ampere.
(One Bohr magneton equals 9.274009994 × 10−24 ampere times square metre).
An equivalent is the potential difference across a resistance of one ohm when one ampere is flowing through it.
