Voltage electric, explain, symbol, unit

Electric voltage or electric tension is the difference between two certain points, and this difference is what allows the flow of electric current from one point to another, and the voltage difference is what generates a driving force that pushes the current in the direction of the low voltage.

The unit of measured voltage :

the unit of measurement of electrical tension in the global system is Volt, which is denoted by the letter V, to measure electrical tension we use a device that called avometer or Multimeter and it is placed in parallel with the load that we want to measure its electric voltage .

Ohm's law :

Equation voltage with electric current is a compelling relationship, as the higher the voltage, the greater the intensity of the electric current or the number of electrons passing through the electrical conductor, and there is a famous and simple equation that combines the voltage and the voltage , Electrical current and electrical resistance called Ohm's Law, I have already put up an educational article on Ohm's Law, you can refer to it here.

Ohm's law equation

How to measure voltages :

The method of measuring voltage varies according to the method of measuring electric current, where when we want to measure the voltage, the Avometer device is placed in parallel with the electrical compound, which we want to know its electric voltage, unlike the electric current that is placed in succession, and this image below shows a method of measurement Voltage.