INSTALLER TECHNICIAN QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+
20 milliamperes is the same as __________ (remember 1 milliampere =
.001 Ans✓✓✓0.02 amperes
The orbital shell that has a maximum electron capacity of 18 electrons is
the ______________ shell Ans✓✓✓Third
A semiconductor material Ans✓✓✓Has four valence electrons.
The major factor for determining whether a particular elements is a
conductor, a semiconductor, or an insulator is Ans✓✓✓The number of
electrons in the valence shell.
Elements that are called conductors Ans✓✓✓Have very few valence
electrons
The term voltage normally refers to Ans✓✓✓The measurement of the
difference in potential between two charges
Indicates how many coulombs pass a given point during 1 second
Ans✓✓✓The ampere
,Electric current is actually produced by Ans✓✓✓The transfer of energy
from valence electron to valence electron as a result of applied charges
What prevents the electrons that orbit an atom's nucleus at high speeds
from breaking away from the nucleus due to centrifugal force?
Ans✓✓✓The attraction between the positive nucleus and the negative
electron
5 kilovolts is the same as Ans✓✓✓5 kV
To create an electromagnet Ans✓✓✓Wrap a coil of insulated wire
around an iron bar and pass an electric current through the wire
Magnetism Ans✓✓✓Where only some of the magnetic domains are
pointing in the same direction, the magnetic field is weaker
Where only some of the magnetic domains are pointing in the same
direction, the magnetic field is weaker Ans✓✓✓In magnetic material
The strength of an electromagnetic field is Ans✓✓✓Determined by the
magnitude of the magnetomotive force (mmf)
The magnetic field Ans✓✓✓Created by a straight piece of wire is
weaker than that created by forming loops of wire
, Flux lines Ans✓✓✓Always curve around through the body of the
magnet to form complete loops
Magnetic poles that are _________ will _________ each other when
those poles are near each other Ans✓✓✓Alike, repel
A permanent-magnet loudspeaker Ans✓✓✓Has a cone that moves back
and forth in relation to the varying current of the original sound
the left-hand rule for electromagnetism in a wire states that Ans✓✓✓If
you wrap the fingers of your left hand around the wire with your thumb
pointing in the direction of the current flow, your fingers will be
wrapped in the direction of the magnetic field
the recording head of a tape recorder is actually an
Ans✓✓✓Electromagnet
What are the three basic elements of an electrical circuit? Ans✓✓✓A
power source, a load, and the connecting conductor
The power source Ans✓✓✓is the part of an electrical circuit that
provides a difference of potential
DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+
20 milliamperes is the same as __________ (remember 1 milliampere =
.001 Ans✓✓✓0.02 amperes
The orbital shell that has a maximum electron capacity of 18 electrons is
the ______________ shell Ans✓✓✓Third
A semiconductor material Ans✓✓✓Has four valence electrons.
The major factor for determining whether a particular elements is a
conductor, a semiconductor, or an insulator is Ans✓✓✓The number of
electrons in the valence shell.
Elements that are called conductors Ans✓✓✓Have very few valence
electrons
The term voltage normally refers to Ans✓✓✓The measurement of the
difference in potential between two charges
Indicates how many coulombs pass a given point during 1 second
Ans✓✓✓The ampere
,Electric current is actually produced by Ans✓✓✓The transfer of energy
from valence electron to valence electron as a result of applied charges
What prevents the electrons that orbit an atom's nucleus at high speeds
from breaking away from the nucleus due to centrifugal force?
Ans✓✓✓The attraction between the positive nucleus and the negative
electron
5 kilovolts is the same as Ans✓✓✓5 kV
To create an electromagnet Ans✓✓✓Wrap a coil of insulated wire
around an iron bar and pass an electric current through the wire
Magnetism Ans✓✓✓Where only some of the magnetic domains are
pointing in the same direction, the magnetic field is weaker
Where only some of the magnetic domains are pointing in the same
direction, the magnetic field is weaker Ans✓✓✓In magnetic material
The strength of an electromagnetic field is Ans✓✓✓Determined by the
magnitude of the magnetomotive force (mmf)
The magnetic field Ans✓✓✓Created by a straight piece of wire is
weaker than that created by forming loops of wire
, Flux lines Ans✓✓✓Always curve around through the body of the
magnet to form complete loops
Magnetic poles that are _________ will _________ each other when
those poles are near each other Ans✓✓✓Alike, repel
A permanent-magnet loudspeaker Ans✓✓✓Has a cone that moves back
and forth in relation to the varying current of the original sound
the left-hand rule for electromagnetism in a wire states that Ans✓✓✓If
you wrap the fingers of your left hand around the wire with your thumb
pointing in the direction of the current flow, your fingers will be
wrapped in the direction of the magnetic field
the recording head of a tape recorder is actually an
Ans✓✓✓Electromagnet
What are the three basic elements of an electrical circuit? Ans✓✓✓A
power source, a load, and the connecting conductor
The power source Ans✓✓✓is the part of an electrical circuit that
provides a difference of potential
