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 symbol was used by André-Marie Ampère, … 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 … 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

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

The conventional direction of current, also known as conventional current, is arbitrarily defined as the direction in which positive charges flow. In a conductive material, the moving charged particles that constitute the electric current are called charge carriers See more

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

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