# Electrical Voltage (V)

Electricity Voltage is the amount of energy needed to move a unit of electric charge from one place to another.

The electric voltage expressed in Volt units is also often referred to as an electric potential difference because basically an electric voltage is a measure of the potential difference between two points in an electrical circuit.

An object is said to have a higher electric potential than other objects because it has a greater amount of positive charge compared to the amount of positive charge on another object.

While what is meant by electric potential itself is the amount of charge contained in an object.

Electrical voltage can also be considered as a force that drives the movement of electrons through a conductor and the higher the voltage the greater the ability to push electrons through a given circuit. The higher the voltage, the greater the potential energy due to the more electrons released.

If at the time of the distribution of two electric charges separated by a certain distance, then there will be electric power between the two. If the distribution has the same charge (both are positive or both are negative) then they are opposite or mutually reject.

But if the two distribution of charge is different (one positive and the other is negative) it will cause a force that attracts each other. When the two load distributions are connected to the circuit or the load with a positive unit is small, the positive unit will be affected by the two distribution of the charge.

A constant voltage source is usually called a DC voltage (direct voltage) while an electrical voltage source that varies periodically with time is called an AC voltage (alternating voltage).

Electricity voltage is measured in units of Volt which is symbolized by the symbol letter “V”. 1 Volt (one Volt) can be defined as the electric pressure needed to drive 1 Ampere of electric current through a conductor that is 1 Ohm resistance.

The term “VOLT” is taken from the name of the Italian physicist who invented the voltaic Pile battery, Alessandro Volta (1745-1827).

Battery and power supply (power supply) is an example of a source that produces a DC voltage (direct voltage) that is stable as it produces DC voltages of 1.5V, 3V, 5V, 9V, 12V and 24V.

While the AC voltage source (alternating voltage) is available for household and industrial purposes. The standard AC voltage used in Indonesia is 220V, while in other countries there are those that use 100V, 110V or 240V.

## DC Electric Voltage Symbol and AC Power Voltage Symbol

Electronic circuits generally operate using low DC voltages such as 1.5V to 24V DC.

The DC voltage source symbol in electronic circuits is usually a battery symbol with a positive sign (+) and a negative sign (-) which indicates the direction of its polarity.

While the AC voltage symbol in an electrical circuit or electronic circuit is a round circle with a sine wave inside it.

### AC Voltage by Country

 Country Australia Brazil Canada China France Germany India Ireland Israel Italy Japan New Zealand Philippines Russia South Africa Thailand UK USA Voltage 230V 110V 120V 220V 230V 230V 230V 230V 230V 230V 100V 230V 220V 220V 220V 220V 230V 120V Frequency 50Hz 60Hz 60Hz 50Hz 50Hz 50Hz 50Hz 50Hz 50Hz 50Hz 50/60Hz 50Hz 60Hz 50Hz 50Hz 50Hz 50Hz 60Hz