Electric Current Formula

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 formula. As such current is analogous to the number of gallons of water flowing into along and out of a slide per unit of time. An electric current is the rate of flow of electric charge past a point. 614 an electric current is said to exist when there is a net flow of electric charge through a region. Formula unit of electric current.

Let us begin learning. The centimetre gram second units of current is the electrostatic unit of charge esu per second. It is the rate of flow of charge if the electric charge flows through a conductor we say that there is an electric current in the conductor in the circuits using metallic wires electrons constitute a flow of charges. Electric current i charge q time t since the charge is measured in coulombs time in seconds the unit of electric current becomes coulombs sec.

Volt unit of electrical potential or motive force potential is required to send one ampere of current through one ohm of resistance. This current is related to the voltage and resistance of a circuit. So the electric current can be calculated by formulae. A 60 watt lightbulb pulls.

Common electrical units used in formulas and equations are. Ampere units of current one ampere is the current which one volt can send. It means the continuous flow of electrons in an electric circuit is called an electric current. The electric current is given by.

I v r corresponding units. Water current is the rate at which water flows past a point on the water circuit. Ampere a volt v ohm ω this formula is derived from ohm s law. Electric current is known as the rate of flow of negative charges of the conductor.

832 electric charge is carried by charged particles so an electric current is a flow of charged particles the moving particles are called charge carriers which may be one of several types of. In this article we will discuss this important concept of an electrical circuit and electric current formula with examples. Commercial power lines make available about 100 amps to a typical home. A common unit of electric current is the ampere which is defined as a flow of one coulomb of charge per second or 6 2 10 18 electrons per second.

It can be represented by i and the si unit is amperes. Resistance if the electric power and the total resistance are known then the current can be determined by using the following formula. According to ohm s law the electric current formula will be. An electric current is a flow of particles electrons flowing through wires and components.

Electric current is nothing but the rate of change of electric charge through a circuit. Electric current is the rate at which electric charge flows past a point on the electric circuit. As we know the electric current is the rate of charge flow i e. One ampere equals 3 10 9 esu per second.