electrical fundamentals
watts
electrical power
same charges
repel
which term is used for electrical power?
watts
a positively charged atok is called a...
Ion
which of these is also known as electrical potential?
Volts
an electrical conductor is an element with
less than 4 electrons in its outer orbit
electrical power is calculated by
multiplying volts by current
which term describes electrical current resulting from pressure applied to certain crystals?
piezoelectricity
convential theory
positive- current goes away from it negative- current goes toward it
three wire variable resistor
potentiometer. both technicians
voltage supplied to a potentiometer may be called...
reference voltage
which variable resistor is most likely used for a dash light dimmer control?
rheostat
two wire variable resistor
rheostat. both technicians
carbon and silicon are examples of...
semiconductors
which element has the least resistance?
silver has the least resistance
electricity moving through a conductor produces a magnetic field, thos principle is used in which of the following...
starter motor, ignition coil, relay (all of these)
technicain b says that resistance increases as the temperature of a conductor increases
technician b is correct (resistance increases as the temperature of a conductor increases)
as temperature increases...
the resistance of a conductor increases
which device produces electrical current resulting from the heating of two dissimilar conductors?
thermocouple
a Potentiometer usually has how many wires?
three
the ___ is a unit of electrical pressure
volt
which unit of electricity does the work in the circuit?
an amp
what term describes the movement of electrons from one atom to another?
electricity
the automotive battery is based on the principle of...
electrochemistry
semiconductors have how many electrons in their valence rings?
exactly 4
what is the material indicated by the atomic structure?
insulator (more than 4 valence electrons in the outer rim)
