Elec Theory Flashcards
Most insulators are
Compounds of two or more elements
The electrons found in the outermost orbit of the atom are known as
Valance electrons
Voltage is?
A force or pressure
Which form of voltage source requires polarity markings?
Direct voltage
Resistance of a conductor is determined by?
Length, cross-sectional area, temperature and type of material
What is Coulomb’s law
Opposites attract like charges repel
AC stands for ?
Alternating current
Moving wire through a magnetic field creates?
Induced voltage
North American standard frequency is?
60 hz
In voltage like most things a difference of ______ is required in order for current to work
Pressure
Amperage is
The amount of electron flow
One ampere is equal too?
- 28x10 to the 18 power
6. 28 billion billion
Conventional theory states the direction of current is
+ > -
Positive to negative
Length of wire changes the resistance
A)true
B)false
True the longer the wire the more resistance it will have
Thermosister sends?
Thermosister sends resistance depending on the heat or coldness of the metal of the Thermosister
Malt stands for
Material Area Length Temperature Used to determine resistance
If a resistor in a circuit is shorted, a ammeter in the circuit would indicate
More current than normal
Reduced current flow in a series circuit can be caused by:
Corroded terminals on the battery
