electrical fundamentals

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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)


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