Difference between revisions of "Current"
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| − | '''Current''' is the amount of | + | '''Current''' is the amount of electrical charge flowing through an object 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. | ||
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| + | '''Current''' is typically measured in Amperes (<tt>A</tt>), often referred to as "amps". <tt>1 A = 1 [[Coulomb]]/[[second]]</tt> | ||
[[category:Electricity]] | [[category:Electricity]] | ||
Revision as of 21:34, October 30, 2009
Current is the amount of electrical charge flowing through an object 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.
Different objects have different 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.
Current is typically measured in Amperes (A), often referred to as "amps". 1 A = 1 Coulomb/second