Alternating current:an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
Ampere:a unit of electric current equal to a flow of one coulomb per second.
Diode:a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
Direct Current:an electric current flowing in one direction only.
Electric Current:An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.
Electric Power:electrical power: the product of voltage and current
Electric Resistance:Substances electricity can flow through are called conductors. A piece of conducting material of a particular resistance meant for use in a circuit is called a resistor. Conductors are made of high-conductivity materials such as metals, in particular copper and aluminium.
Ohm:the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.
Ohm's Law:Ohm's law has sometimes been stated as, "for a conductor in a given state, the electromotive force is proportional to the current produced." That is, that the resistance, the ratio of the applied electromotive force (or voltage) to the current, "does not vary with the current strength ."
Potential Difference:the difference of electrical potential between two points.
Voltage Source:A Voltage source is a two terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current.
Ampere:a unit of electric current equal to a flow of one coulomb per second.
Diode:a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
Direct Current:an electric current flowing in one direction only.
Electric Current:An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.
Electric Power:electrical power: the product of voltage and current
Electric Resistance:Substances electricity can flow through are called conductors. A piece of conducting material of a particular resistance meant for use in a circuit is called a resistor. Conductors are made of high-conductivity materials such as metals, in particular copper and aluminium.
Ohm:the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.
Ohm's Law:Ohm's law has sometimes been stated as, "for a conductor in a given state, the electromotive force is proportional to the current produced." That is, that the resistance, the ratio of the applied electromotive force (or voltage) to the current, "does not vary with the current strength ."
Potential Difference:the difference of electrical potential between two points.
Voltage Source:A Voltage source is a two terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current.