Electricity: electric current, resistance, power, voltage

WHAT IS FLOW OF ELECTRICITY?

Electric current is defined as the amount of electrical charge that flows per unit time. unit of electric current is A (ampere) or in the written formula I. Electric current is the movement of groups of electrically charged particles in a certain direction. The direction of electric currents flowing in a conductor is of a high potential to low potential (opposite direction to the motion of electrons). One ampere is equal to 1 couloumb of an electron passing through one point in one second. In this case, the amount of electrical energy that moves through the conductor.

Electric charge can flow through wires or other electrically conductive. In former times, conventional current flow is defined as a positive charge, although we now know that the electric currents generated from the negatively charged electrons flow into the opposite direction.

WHAT IS VOLTAGE ELECTRICITY?

Electric voltage (Voltage) is the difference in electrical potential between two points in the electrical circuit. Voltage is measured in volts (V). This scale measures the potential energy of an electric field to cause the flow of electricity in an electrical conductor. Depending on the difference in electrical potential of an electrical voltage can be considered as extra low, low, high or extra high.

Power (the force) that drives an electron to be able to flow in the circuit is called voltage sebauh. Stress is the actual value of the potential energy between two points. In a circuit, there is great potential energy for an electron moving at one point to another point is the amount of voltage.

WHAT IS ELECTRICAL RESISTANCE?

Electrical resistance is the ratio between the voltage of an electronic component (eg resistor) with an electric current through it. Constraints expressed in units of ohms. Free electrons tend to move through the conductor with some degree of friction, or move opposite. This counterclockwise motion is usually referred to as barriers. The amount of flow in the circuit is the amount of energy available to push electrons, and also the amount of resistance in a circuit to impede the flow speed.

WHAT IS ELECTRIC POWER?

Electric power is defined as the rate of delivery of electrical energy in electrical circuits. Units of electrical power is the watt. Electrical power, such as mechanical power, symbolized by the letter P in the electricity equation. In the circuit of the DC current, instantaneous power is calculated using joules law. Electrical power flows wherever electric and magnetic fields in the same place.

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