Current Electricity

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Current Electricity

Ohm’s law

Ohm's law states the relationship between electric current and potential difference. The current that flows through most conductors is directly proportional to the voltage applied to it.

ammeter

a ammeter an instrument used to measure the current in a circuit.

Parallel

An arrangement of electrical devices in a circuit in which the same potential difference is applied to two or more resistances with each resistance being on a different branch of the circuit compare series.

Battery

A battery is a device that stores chemical energy, and converts it to electricity.

Connecting wires

A connecting wire allows travels the electric current from one point to another point without resistivity.

Short circuit

A short circuit occurs when the current finds a way to bypass the appliance on a path that has little or no resistance

Load

Voltmetre

Instrument that measures voltages of either direct or alternating electric current on a scale usually graduated in volts, millivolts (0.001 volt), or kilovolts (1,000 volts).

Open circuit

An open circuit is a circuit where the path has been interrupted or "opened" at some point so that current will not flow.

voltage

Voltage describes the “pressure” that pushes electricity.

Series

A series circuit is one in which all circuit elements are arranged in a single path.

Resistance

Resistance is a measure of the opposition to current flow in an electrical circuit.

Circuits

He flow of electricity in an electronic circuit, and to the amount of electricity flowing through a circuit.

Current electricity

Potential difference

Measure of energy, per unit of charge, transferred between two points in a circuit

Switch

Switch is any device used to interrupt the flow of electrons in a circuit.