Pearson Electrical Fundamentals

Most carbon resistors indicate their electrical resistance by ________

Color coded markings

The fact that voltage can be created by exerting force on a crystal is used for which type of sensor?

Knock Sensor (KS)

Electrical power is calculated by _______.

Multiplying volts by current

Insulators lose electrons in their outer shell easier than conductors.

False

Semiconductors have how many electrons in their valence rings?

Four

What type of material is indicated by this atomic structure?

Insulator

An electrical conductor is an element with ________ electrons in its outer orbit.

Less than 4

Which term describes electrical current resulting from pressure applied to certain crystals?

Piezoelectricity

Voltage supplied to a potentiometer may be called _________.

Reference voltage

Like charges ________

Repel

Which variable resistor is most likely used for a dash light dimmer control?

Rheostat

Carbon and silicon are examples of ________.

Semiconductors

Which of these elements has the least resistance?

Silver

Which device produces electrical current resulting from heating of two dissimilar conductors?

Thermocouple

A potentiometer usually has how many wires?

Three

It is relatively easy to move an electron from the valence ring of a conductor.

True

The outer electron shell is known as a(an) _________.

Valence ring

The _______ is a unit of electrical pressure.

Volt

Which of these is also known as electrical potential?

Volts

Which of these describes electrical power?

Watts

Which unit of electricity does the work in the circuit?

An ampere

Technician A says that a two-wire variable resistor is called a rheostat. Technician B says that a three-wire variable resistor is called a potentiometer. Which technician is correct?

Both Technicians

This diagram indicates current flow using which theory of current flow?

Conventional Theory

What term describes the movement of electrons from one atom to another?

Electricity

The automotive battery is based on the principle of

Electrochemistry

The automotive battery is based on the principle of _______.

Electrochemistry

As temperature increases, ______.

The resistance of a conductor increases