Measurement+of+Energy

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 * [[image:http://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Solenoid.svg/220px-Solenoid.svg.png width="220" height="84" caption="Solenoid.svg" link="http://en.wikipedia.org/wiki/File:Solenoid.svg"]] ||
 * [|Electricity] **·** [|Magnetism] ||

There are many circuits. But one question may be " How Do you Measure electricity?"

Well there are two simple answers:

Ammeter and Voltmeter


 * Ampere (amp):** A unit of electrical current or rate of flow of electrons. One [|volt] across one ohm of resistance causes a current flow of one ampere. Amperes are used by utilities and electrical engineers to measure electrical flow.
 * Joule! (J):** A unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one [|ohm] for one second (synonymous with watt-second).
 * Kilowatt (kW):** A standard unit of electrical power equal to 1000 [|watts]. The term “kilowatt” (in addition to the measurements of “watt” and “megawatt”) is commonly used to describe the capacity of an [|electric generator], particularly in reference to small [|solar photovoltaic] and other generating systems


 * Voltmeter**

A **//voltmeter//** is an instrument used for measuring the electrical potential difference between two points in an electric circuit.