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*current that periodically reverses in direction
*as the alternating voltage periodically reverses in polarity |
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*basic unit of current
* 1A= 1C/1s |
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| smallest particle of an element that still has the same characteristics as the element |
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# of proton
*balanced by an = number of electrons, in an atom |
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*any material that allows the free movement of electric charges
*such as electrons, to provide an electric current |
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Definition
*direction of current flow
*associated with positive charges in motion
*current flow direction is pos. to neg. potential |
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Definition
| *basic unit of electric charge * 1C=6.25x1018 |
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| movement of electric charges around a closed path or circuit |
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Definition
| another name for insulator |
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| current flow that has just one direction |
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Definition
| most basic particle of negative charge |
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*movement of electrons that provides current in a circuit
*current flow direction is from neg. to a pos. potential |
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Definition
| # of electrons in an incomplete outermost shell of an atom |
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| substance that cnt be decomposed any further by chemical action |
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| electron that can move freely from one atom to the next |
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| material with atoms in which the electrons tend to stay in their own orbits |
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| atom that has either gained or lost 1 or more valence electrons to become electrically charged |
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| smallest unit of a cmpd with the same chemical characteristics |
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| particle contained in the nucleus of an atom that is electrically neutral |
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| massive, stable part of the atom that contains both protons and neutrons |
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| most basic particle of positive charge |
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| the opposition to the flow of current in an electric circuit |
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| material that is neither a good conductor nor a good insulator |
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| any charge, positive or negative, that is stationary or not in motion |
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unit of potential difference or voltage
* 1V = 1J/1C |
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