It means the continuous flow of electrons in an electric circuit is called an electric current. In this article, we will discuss this important concept of an electrical circuit and electric current formula with examples. It can be represented by I and the SI unit is Amperes. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. Let us begin learning! Electric current, any movement of electric charge carriers such as electrons, protons, ions, or holes. Determine the magnitude of the current flowing through it. In an electrolyte the charge carriers are ions, w… Electricity Formulas are applied in calculating the unknown electrical parameters from the known in electric circuits.. Electric current is nothing but the rate of change of electric charge through a circuit. Electric Current Formula The rate of flow of charge through a cross section of some region of a metallic material is called the electric current. Electric current is known as the rate of flow of negative charges of the conductor. An electric current is the rate of flow of electric charge past a point or region. Solved Examples. Electric charge is carried by charged particles, so an electric current is a flow of charged particles. Electric current in a wire, where the charge carriers are electrons, is a measure of the quantity of charge passing any point of the wire per unit of time. The electric current is given by: I = V / R Corresponding units: ampere (A) = volt (V) / ohm (Ω) This formula is derived from Ohm's law. Where we have: V: voltage I: current R: resistance If the electric power and the total resistance are known, then the current can be determined by using the following formula: Electric current relates the electric charge and the time. In electric circuits the charge carriers are often electrons moving through a wire. This current is related to the voltage and resistance of a circuit. An electric current is said to exist when there is a net flow of electric charge through a region. An electric heater has a potential difference of 220 V and resistance is 70 Ω. Example 1. According to Ohm’s law, the electric current formula … It is related to the resistance of the material and the voltage applied to move the charge.

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