electrical quantities

a. Voltage: Symbol U (German: Ursache = cause). Voltage is the cause of the flow of electrons. Measured by the voltmeter in units of V (Volt).

HIGH VOLTAGE                LOW VOLTAGE

             Electron deficiency                         Excess Electrons

              (Potential Low)                          (High Potential)

Large potential difference high voltage


Pole-called electron-deficient positive pole

Pole is called the excess electron negative pole

b. Electric current: Symbol I (German: Intensitaet = Intensity, large current).


Strong currents are the number of electrons flowing through a conductor per second.
Ampere Meter measured by the unit A (Ampere).

Large influence on the current voltage can be illustrated by the flow of water


Small voltage = small current
large voltage= large current


c. Electrical resistance: Symbol R (Germany: Resistanz = resistance / resistance).




resistant of the barriers experienced by the electrons at the time of displacement.
Measured with an Ohm meter, unit (ohm).


The influence of the prisoners with the flow can be illustrated by the flow of water

Great resistance =  small current

small resistance =  large current