Ch. 39 Electrical Fundamentals ELECTRICAL

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

Fewer than four electrons

Creating electricity by exerting a force on a crystal is called _____.

piezoelectricity

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

Knock Sensor (KS)

What is the relationship between​ P, I, and​ E? Given: P​ = electrical power in watts I​ = current flow in amperes E​ = electrical pressure in volts

P​ = I x E

Like charges _____.

Repel

a potentiometer, a three-wire variable resistance, is used in which type of sensor?

Throttle Position (TP)

Resistance to the flow of current through a conductor is measured in units called​ ________.

ohms

Voltage developed due to pressure applied to a crystal is known as​ ________.

piezoelectricity

A​ ________ is a​ two-terminal unit in which all of the current flows through the movable arm.

rheostat

Carbon and silicon are examples of _____.

semiconductors

As temperature increases, __________.

the resistance of the conductor increases

A(an) ________ is a​ temperature-measuring device.

thermocouple

The _____ is a unit of electrical pressure.

volt

Which unit of electricity does the work in a circuit?

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 Tech A and Tech B

​________ are materials with fewer than four electrons in their​ atom's outer orbit.

conductors

The ampere is the unit used to measure​ ________.

current flow

Which of the following is an example of an​ insulator?

fiberglass

Semiconductors are materials with exactly​ ________ electrons in their outer orbit.

four

The resistance of a conductor​ ________ as the temperature increases.

increases