lag RU RO FR EN
 
 
 
 

MENU: home page

unit of measure: the base unit | the supplementary unit | the derived unit

geometry: the area of a flat figure | the area of a solid | the volume of the solid


unit

Electrical current

Definition

The electrical current is directed movement of electrical charges. Electric current intensity, often called as the electrical current that characterize globally the current, referring to the amount of electric charge crossing the considered section per unit time.

1 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 × 10–7 Newton per metre of length.

 

system of units:   SI;
statute:   the base unit;
name the value:   I;
unit name:   ampere;
symbol unit:   A;
dimension:   I;
expression in other units:   Bi, emu, esu, Gs;

Online converter

For separation of number integers and decimals, use the symbol – point [.]

from:


in:

 

 

Units of measurement

namesymbol value in SI unit:
A
note
1 ESU esu≈ 3.335 641 × 10-10(1)
1 franklin per secound Fr/s≈ 3.335 641 × 10-10 
1 gauss Gs, G≈ 3.335 641 × 10-10 
1 statampere  ≈ 3.335 641 × 10-10 
1 gilbert Gi≈ 0.795 774 7 
1 siemens volt S·V= 1 
1 volt per ohm V/Ω= 1 
1 watt per volt W/V= 1 
1 weber per henry Wb/H= 1 
1 coulomb per secound C/s= 1 
1 amper absolute A= 1.00015 
1 biot Bi= 10 
1 EMU emu= 10(2)

Note

(1) - ESU - electrostatic unit;

(2) - EMU - electromagnetic unit;