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| − | '''Current''' is the amount of electrical charge flowing through an object, or through an electric circuit, at a given moment<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>. While moving charge is normally carried by [[electrons]], positive current is measured in the opposite direction from the flow of electrons, since electrons have a negative charge.<p></p> | + | '''Current''' is the amount of electrical charge flowing through an object, or through an electric circuit, at a given moment. While moving charge is normally carried by [[electrons]], positive current is measured in the opposite direction from the flow of electrons, since electrons have a negative charge.<p></p> |
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| | Different objects have different [[Electrical_resistance|resistance]]. An object with high resistance, called an [[insulator]], will have a lower current flowing through it. An object with low resistance, called a [[conductor]], will have a higher current flowing through it. | | Different objects have different [[Electrical_resistance|resistance]]. An object with high resistance, called an [[insulator]], will have a lower current flowing through it. An object with low resistance, called a [[conductor]], will have a higher current flowing through it. |
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| | '''Current''' is typically measured in the [[SI]] unit of Amperes (<tt>A</tt>), often referred to as "amps". <tt>1 A = 1 [[Coulomb]]/[[second]]</tt> | | '''Current''' is typically measured in the [[SI]] unit of Amperes (<tt>A</tt>), often referred to as "amps". <tt>1 A = 1 [[Coulomb]]/[[second]]</tt> |
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| − | Direct current ([[DC]]) has a zero [[frequency]]. [[Alternating Current (AC)]] has a non-zero frequency.
| + | The word "current" appears in the phrases "direct current" ([[Direct current|DC]]) and "alternating Current" ([[Alternating Current (AC)|AC]]) though those phrases don't specifically refer to current, and could more commonly be considered to refer to [[volt|voltage]]. |
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| | == References == | | == References == |
| | {{reflist}} | | {{reflist}} |
| − | [[category:Electricity]] | + | |
| | + | [[Category:Physics]] |
| | + | [[Category:Electricity]] |
| | + | [[Category:Electronics]] |
| | [[Category:Radio]] | | [[Category:Radio]] |
| − | [[Category:Amateur Radio]]
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| − | [[Category : Electricity]]
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| − | [[Category : Solar Energy]]
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| − | [[Category : Wind Energy]]
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| − | [[Category : Hydroelectric Energy]]
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