The conventional symbol for current is I, which originates from the French phrase intensité du courant, (current intensity). Current intensity is often referred to simply as current. The I … See more

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that … See more

The occurrences of electric current can be divided into three main types: inorganic, biological and technological.
1. Inorganic occurrences of electricity in nature
Electrostatic materials - piezoelectricity - the geophysical … See more

The conventional direction of current, also known as conventional current, is arbitrarily defined as the direction in which positive charges … See more

In alternating current (AC) systems, the movement of electric charge periodically reverses direction. AC is the form of electric power most … See more

Current can be measured using an ammeter. While a galvanometer offers direct electric current measurement, it requires breaking … See more

Joule heating, also known as ohmic heating and resistive heating, is the process of power dissipation by which the passage of an … See more