# Shared Flashcard Set

## Details

Ch 1 Grob's Basic Electronics.
A collection of important terms and questions from the self tests in the 10th edition of the book
43
Physics
01/15/2009

Term
 Alternating Current (AC)
Definition
 A current that periodically reverses in direction as the alternating voltage periodically reverses in polarity.
Term
 Ampere
Definition
 The basic unit of current 1 A = 1C/1s
Term
 Circuit
Definition
 A path for current flow
Term
 compound
Definition
 a combination of two or more elements
Term
 Conductance
Definition
 the reciprocal of resistanceAlso, Electrical conductance is a measure of how easily electricity flows along a certain path through an electrical element
Term
 Conductor
Definition
 Any material That allows the free movement of electric charges, such as electrons, to provide an electric current.
Term
 Conventional Current
Definition
 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.
Term
 Couloumb
Definition
 The basic unit of electric charge. 1 C = 6.25 X 10­18 electrons or protons.
Term
 Current
Definition
 A movement of electric charges around a closed path or circuit
Term
 Dielectric
Definition
 Another name for insulator
Term
 Direct Current
Definition
 a current flow that has just one direction
Term
 Electron
Definition
 The most basic particle of negative charge
Term
 Electron Flow
Definition
 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.
Term
 Electron Valence
Definition
 The number of electrons in an incomplete outermost shell of an atom
Term
 Free Electron
Definition
 An electron that can move freely from one atom to the next
Term
 Insulator
Definition
 A material with atoms in which the elctrons tend to stay in their own orbits
Term
 Ion
Definition
 an atom that has either gained or lost one or more valence electrons to become electrically charged
Term
 Nuetron
Definition
 a particle contained in the nucleus of an atom that is electrically nuetral
Term
 Nucleus
Definition
 The massive, stable part of the atom that contains both protons and neutrons.
Term
 Ohm
Definition
 the unit of resistance
Term
 Potential Difference
Definition
 a property associated with two unlike charges in close proximity to each other
Term
 proton
Definition
 the most basic particle of positive charge
Term
 Resistance
Definition
 the opposition to the flow of current in an electric circuit
Term
 Semiconductor
Definition
 a material which is neither a good conductor nor a good insulator
Term
 Siemens
Definition
 the unit of conductance.
Term
 Static Electricity
Definition
 any charge, positive or negative that is stationary or not in motion.
Term
 Volt
Definition
 The unit of potential difference or voltage. V = J/C
Term
 The most basic particle of negative charge is the
Definition
 Electron
Term
 The coulomb is a unit of
Definition
 Electrical Charge
Term
 Which of the following is not a good conductor. (Copper, Silver, Glass, Gold)
Definition
 Glass
Term
 The electron valence of a copper atom is
Definition
 +1
Term
 The unit of potential difference is the
Definition
 volt
Term
 A 100Ω resistor has a conductance, G, of
Definition
 0.01 S.
Term
 The most basic particle of positive charge is the
Definition
 proton
Term
 If a neutral atom loses one of its valence electrons, it becomes a
Definition
 positive ion
Term
 the unit of electric current is
Definition
 ampere
Term
 The unit of resistance is the
Definition
 Ohm Ω
Term
 One ampere of current corresponds to (an equation)
Definition
 1C/1s
Term
 Conventional current is considered
Definition
 The motion of positive charges in the opposite direction of electron flow.
Term
 In a circuit the opposition to the flow of current is called the
Definition
 resistance
Term
 The nucleus of an atom is made up of
Definition
 protons and neutrons
Term
 When the polarity of applied voltage reverses, the direction of current flow also reverses. True or False
Definition
 True
Term
 A battery is a dc voltage source because it cannot reverse the polarity across its output terminals. True or False
Definition
 True
Supporting users have an ad free experience!