Question 1

Gold is the best natural conductor of electricity, followed by copper, silver, and aluminum.

Accepted Answer

Silver is the best natural conductor of electricity, followed by copper, gold, and aluminum.

Question 2

P- and n-type materials are independently useful without being joined.

Accepted Answer

P- and n-type materials are primarily designed to be used together in semiconductor devices like diodes and transistors. While they have some independent properties, their most significant applications and functionalities arise when they are joined to form p-n junctions, which allow for the control of electrical conductivity and the flow of current in electronic devices.

Question 3

A ____ is a resistor whose values can be changed or varied over a range.&#10;A) fixed resistor&#10;B) static resistor&#10;C) free resistor&#10;D) variable resistor

Accepted Answer

A variable resistor is designed to have its resistance value adjusted or changed. It allows for the control of electrical characteristics in a circuit.

Question 4

Solid-state electronic devices are constructed from solid pieces of material called ____.&#10;A) vacuum tubes&#10;B) conductors&#10;C) semiconductors&#10;D) transducers

Accepted Answer

Solid-state electronic devices are constructed from semiconductors, which are materials that have electrical conductivity between that of a conductor and an insulator.

Question 5

Electrical schematics use symbols to represent the use of a resistor.

Accepted Answer

Electrical schematics use symbols to represent various components, including resistors, to depict how they are connected in a circuit.

Question 6

A ____ is a variable resistor used to provide a variable voltage.&#10;A) wire wound&#10;B) potentiometer&#10;C) transformer&#10;D) sink

Accepted Answer

A potentiometer is a type of variable resistor that can be adjusted to give varying levels of voltage output, making it the correct choice for a component used to provide variable voltage.

Question 7

____ are electrons located in the outer or valence shell of an atom.&#10;A) Valence electrons&#10;B) Free electrons&#10;C) Core electrons&#10;D) Radical electrons

Accepted Answer

Valence electrons are the electrons in the outermost shell of an atom. These electrons are involved in forming bonds with other atoms.

Question 8

The process used to add impurities, or elements with a different number of valence electrons, to an intrinsic semiconductor material is called ____.&#10;A) dropping&#10;B) doping&#10;C) lacing&#10;D) marking

Accepted Answer

Doping is the process of adding impurities to an intrinsic semiconductor to modify its electrical properties, typically to enhance its conductivity.

Question 9

Multiturn variable resistors operate by moving the wiper arm with a screw of some number of turns.

Accepted Answer

Multiturn variable resistors are designed to allow precise adjustments of resistance by turning a screw or knob multiple times, which moves the wiper arm across the resistive material over several turns for finer control.

Question 10

Fixed resistors have only one ohmic value that cannot be changed or adjusted.

Accepted Answer

Fixed resistors are designed to have a specific resistance value that does not change or adjust with use or environmental conditions.

Deck 1: Semiconductors and Resistors