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| A current that periodically reverses in direction as the alternating voltage periodically reverses in polarity. |
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The basic unit of current 1 A = 1C/1s |
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| a combination of two or more elements |
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the reciprocal of resistance Also, Electrical conductance is a measure of how easily electricity flows along a certain path through an electrical element |
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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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| The direction of current flow associated with positive charges in motion. The current flow direction is from a positive to negative potential, which is in the opposite direction of electron flow. |
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| The basic unit of electric charge. 1 C = 6.25 X 1018 electrons or protons. |
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| A movement of electric charges around a closed path or circuit |
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| Another name for insulator |
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| a current flow that has just one direction |
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| The most basic particle of negative charge |
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| The movement of electrons that provides current in a circuit. The current flow direction is from a negative to a positive potential, which is in the opposite direction of conventional current. |
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| The number of electrons in an incomplete outermost shell of an atom |
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| An electron that can move freely from one atom to the next |
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| A material with atoms in which the elctrons tend to stay in their own orbits |
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| an atom that has either gained or lost one or more valence electrons to become electrically charged |
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| a particle contained in the nucleus of an atom that is electrically nuetral |
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| The massive, stable part of the atom that contains both protons and neutrons. |
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| a property associated with two unlike charges in close proximity to each other |
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| the 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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| a material which 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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| The unit of potential difference or voltage. V = J/C |
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| The most basic particle of negative charge is the |
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| Which of the following is not a good conductor. (Copper, Silver, Glass, Gold) |
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| The electron valence of a copper atom is |
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| The unit of potential difference is the |
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| A 100Ω resistor has a conductance, G, of |
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| The most basic particle of positive charge is the |
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| If a neutral atom loses one of its valence electrons, it becomes a |
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| the unit of electric current is |
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| The unit of resistance is the |
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| One ampere of current corresponds to (an equation) |
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| Conventional current is considered |
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| The motion of positive charges in the opposite direction of electron flow. |
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| In a circuit the opposition to the flow of current is called the |
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| The nucleus of an atom is made up of |
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| When the polarity of applied voltage reverses, the direction of current flow also reverses. True or False |
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| A battery is a dc voltage source because it cannot reverse the polarity across its output terminals. True or False |
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