Electrical current is the flow rate of electric charge in electric field, usually in electrical circuit. The charge could be positive or negative. The value of AC current in one direction increases from ZERO to Maximum and fall down to ZERO and then in opposite direction it increases from ZERO to Maximum again and come back to ZERO. Andrew Zimmerman Jones is a science writer, educator, and researcher. A simple ammeter uses a galvanometer, which is a needle attached with a coil that deflects in the presence of current).

Defining Electric Current. Electrons are minute particles that exist within the molecular structure of a substance. All types of storage cells provide a direct current that is why there are positive & negative markings on them to show the direction of the current flow. The needle will deviate showing the presence of a magnetic field.Electromagnetism is also a phenomenon where the magnetic field is generated using the flow of electricity through a wounded conductor. Audio and radio signals carried on electrical wires are also examples of alternating current. The inverters are used for providing backup power in case of emergency or power shortage in industries as well as our homes.Some of the effects due to the flow of electric current are given below;As we know that an electric current is a form of energy & it can be converted into other forms. Practically, the electric current is the flow of electron (negatively charged particle) & it moves from the negative terminal out to the external circuit & then into the positive terminal of a cell. Or the conventional current moves from higher potential to lower potential.Conventional Current flow is assumed in electrical engineering and circuits while solving and analyzing the circuits.Practically, the electric current is the flow of electron (negatively charged particle) & it moves from the negative terminal out to the external circuit & then into the positive terminal of a cell. The angle of deflection represents the amount of current passing through the conductor.In the modern era of digital technology, people use For more details, see our The wounded conductor increases the strength of the magnetic field at a specific point.Electric current is the flow of electron, so passing a current through a chemical will result in a chemical reaction. When there is a potential difference between two points in a conductive medium, electric charge starts flowing from the higher potential point to … In direct current, the flow of electric charge is only in one direction. We depends on ad revenue to keep creating quality content for you to learn and enjoy for free.What is Electric Current, its Unit, Formula, Types & ApplicationsIn this modern age of technology, almost everything runs on Electric current is the reason electrical & electronics engineering exist. An increase in the current will increase the heat generated & this is what actually causes an electrical fire.When current flows through a conductor it creates a magnetic field around it. But it was considered during the discovery of electric current that the electric current flows from higher potential to lower (that means from positive terminal to the negative terminal), which is not correct. Causes : It induces because of the movement of the negative charges from one object to another: The current electricity is because of the movement of the electrons. The strength of this magnetic field also depends on the amount of current passing through the conductor at that point.The magnetic field can be sensed by placing a compass over the conductor when its carrying current. The usual waveform of an AC power circuit is a sine wave. The amount of charge flowing through a certain point in a conducting medium in a specific time is called electric current.Electric current is one of the seven base quantities. Electrical current is a measure of the amount of electrical charge transferred per unit of time. The electrons lose some energy in the form of heat due to the collision inside the conductor.This heat generated is directly proportional to the square of current providing resistance is constant.

But when it flows in a conductor, it generates heat due to the presence of resistance in a conductor.

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