Question

WHAT IS VOLTAGE , EMF AND WHAT IS THE DIFFERENCE BETWEEN ELECTRIC POTENTIAL, ELECTRIC POTENTIAL ENERGY AND VOLTAGE AND HOW IS VOLTAGE DEFINED WHEN WE TALK IN A CIRCUIT

Answer 1

Dear student,

Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points.

Voltage is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating a light. In brief, voltage = pressure, and it is measured in volts (V).

Voltage is defined as the electromotive force or electric potential energy difference between two points per unit of charge, expressed in volts

Electric circuits manipulate energy by moving electric charge between voltage levels. It takes work to move electric charge from a lower voltage level to a higher voltage level, but that charge can then do other work for you when you allow it to move back down from a higher voltage to a lower voltage. So if you understand that it takes work to move heavy objects to high places and that those objects can do work for you as they fall back down from those high places, then you understand voltage!

Regards