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Solutions of engineering electromagnetics 6th edition william h. hayt, john a. buck.pdf
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Solutions of engineering electromagnetics 6th editionwilliam h. hayt, john a. buck.pdf
A current carrying wire produces -ANSa magnetic field
A solenoid converts electromagnetic energy into -ANSmotion, providing a burst of power that can move a
specific part of the device.
A solenoid is a -ANScoil of wire with electric current flowing through it, giving it north and south magnetic
poles
a solenoid is a coil of wire with -ANSelectric current flowing through it. This gives the coil north and south
magnetic poles and a magnetic field
A solenoid is generally used to -ANSconvert electromagnetic energy into motion
Adding more turns to the coil of wire increases the -ANSstrength of the magnetic field.
An atom is -ANSa bunch of positively charged protons with a bunch of negatively charged electrons
whizzing around them
An electromagnet is a solenoid wrapped around a -ANSbar or ferromagnetic material
An electromagnet is stronger if it is made with a -ANSbigger bar or one made of a material that is easy to
magnetize, also increases an electromagnet's strength.
An electromagnet is stronger with -ANSmore turns in the coil of wire. Also, the more current flowing through
the electromagnet, the stronger it is.
Any wire with current flowing through it has a magnetic field. However, the magnetic field around a coiled
wire is -ANSstronger than the magnetic field created by a straight current carrying wire.
Atom -ANScomposed of positively charged protons and neutrons in the core of the nucleus. Meanwhile,
negatively charged electrons orbit about the nucleus
Current flowing through the solenoid's coil produces a magnetic field that has -ANSnorth and south poles
Decreasing the voltage of the direct current -ANSdecreases the strength of the magnetic field
Describe a solenoid and it's magnetic field -ANSA solenoid is a coil that contains an electric current. The
magnetic field inside the coil is straight and uniform in the magnetic field. The magnetic feilds similar to a
bar magnet, because both a north and south poles
Electric field -ANSa region around a charged particle or object within which a force would be exerted on
other charged particles or objects.
Electromagnet -ANSa solenoid wrapped around a bar of iron or other ferromagnetic material
Electromagnetic Induction -ANSThe ability of magnets to create an electric current, and of electric currents
to create magnetic fields.
Electromagnetism -ANSthe connection between electricity and magnetism; magnetism produced by an
electric current
Electromagnets are the strongest magnets made due to the -ANSmagnetic force of the magnetized wire
coil and iron bar.
Electromagnets can be turned on or off and their strength can be changed by -ANScontrolling the electric
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current
Electromagnets have the ability to be controlled through changing the -ANSelectric current.
Electrons flowing through the wire causes the -ANScompass needle to move
Faraday's law -ANSthe faster the magnetic field changes, the greater the voltage current produced.
Faraday's law suggests that -ANSthe more loops that you move the magnetic field through, the greater the
voltage produced. So, doubling the number of loops doubles voltage and also current
For a coil of a wire -ANSthe magnetic field is uniform and straight inside the coil.
For a coil of a wire the field outside -ANSthe coil is weak
How is a solenoid like a bar magnet? -ANSLike a bar magnet, a solenoid has north and south poles and is
surrounded by a magnetic field
In a straight current carrying wire, -ANSthe magnetic field forms in circles around the wire
In any solid, there are -ANSmany electrons whizzing around the atoms and molecules that make up any
solid
In non magnetic objects, the electrons -ANSspin in different, random direction, making the material be non
magnetic
In some materials, the electrons all -ANSspin in the same direction
Increasing the amount of current flowing through the coil also increases the -ANSstrength of the magnetic
field
Increasing the number of loops in the wire coil -ANSincreases the strength of the magnetic field
like poles repel -ANSopposite poles attract
Magnetic Field -ANSthe region around a magnetic pole. In other words, a magnetic field is the space
around a magnet where other magnets will experience a force.
Magnetic field lines point -ANSfrom the north pole to the south pole
Magnetic fields exert -ANSa magnetic force on other magnets
Magnetic Force -ANSforces that magnets exert on one another. This either repels or attracts another
magnet.
Magnetism completely depends on the -ANSelectrons in the atoms
Magnets depend on the atoms -ANSthey are made of
Magnets have -ANSmagnetic fields around them. Arrow points from the north to the south pole of the
magnet
No matter how many times a magnet is split, -ANSit will always have a north and south pole.
particles with an electric charge -ANSalso happen to be tiny magnets
Right Hand Rule -ANSthumb points in the direction of the current and the directions of your fingers wrap to
show the direction of the magnetic field
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Similar to an electric charge, magnets will feel -ANSa push or pull when brought into the magnet field of
another magnet
Since the electrons spin in different directions -ANSthe magnetic fields from each electron point in different
directions. Since the electrons are pointing in different directions, the fields cancel out and they are
magnetic.
solenoid -ANSa coil of wire with electric current flowing through it, giving it a magnetic field like a bar
magnet
Solenoids are also used in devices that need a -ANSsudden burst of power to move a specific parts
The amount of current flowing through the coil can also control the -ANSstrength of the electromagnet
The closer the magnetic field lines are -ANSthe stronger the field.
The closer you are to the poles -ANSthe stronger the magnetic field is
the coil is given the north and south magnetic poles and a magnetic field, the magentic field of the solenoid
-ANSmagnetizes the iron bar by aligning it's magnetic domains
The coil with more loops of coil has a -ANSstronger magnetic field compared to that of a coil with fewer
loops.
The combined magnetic fore of the magnetized wire coil and iron bar makes an electromagnet -ANSvery
strong
The electrons in a half filled shell -ANSthe electrons are unpaired and their tiny magnets point in the same
direction and add up. This creates a magnetic field
The electrons in any filled shell -ANSzoom equally in all directions, so the magnetic fields they generate
cancel out. It is not magnetic! The electrons come in pairs whose tiny magnets come in pairs that point in
opposite directions and also cancel.
The magnetic behavior of any everyday object -ANSis influenced by both the level of particles and
collections of atoms
The magnetic field around a coiled wire is stronger than that of a straight wire. This is because each turn of
wire has it's own -ANSmagnetic field.
The magnetic field of the solenoid magnetizes the -ANSiron bar.
The north geographic pole is the ummmmmm south magnetic pole. -ANSThe south geographic pole is the
ummmmmmm north magnetic pole.
The north pole of a compass needle always -ANSpoints toward the Earth's North pole. The Earth's
geographic north pole is also the earths south magnetic pole.
The nucleus of the atom has no -ANSimpact on the magnetic field of that atom as a whole. This is because
the proton tiny magnets are weaker
The proton tiny magnets are -ANSweaker than the electron tiny magnets
The strength of the magnetic force depends on -ANSthe distance between the magnets. The closer they
are, the stronger the force. The further the magnets are, the weaker the force.
Turning the current on or off turns the magnetic field -ANSon or off
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Using more turns of wire or more current increases the -ANSstrength of the solenoid's magnetic field.
What makes a magnetic field magnetic? -ANSA magnetic field is produced by the motion of electric charge.
When a compass is in a magnetic field -ANSthe compass points in the direction of the of the field lines
When an electric charge starts moving, an electric field becomes a -ANSmagnetic field
When an electron is moving around an atom, -ANSit creates a magnetic field
When the electrons spin in
the same direction, -ANSthis
means that the magnetic
fields of the electrons are
aligned with each other. This
makes the object magnetic
1. WhichofthefollowingisNOTfoundintherhythmPulselessElectricalActivity
(PEA)?(Required)
A. Organizati
on B.Pulse
C. Pwaves
D. QRScomplexes
2. The nurse observes the rhythm above on the cardiac monitor. The nurse
assessesthepatientandfindsthatthepatientisunresponsiveandhasnopulse. The
nurse calls a code blue and starts CPR. Arhythm checked is performed and the
same rhythm is noted with no pulse. What is an INCORRECT action by the code
team for treatment of this rhythm?(Required)
A. ContinueCPR
B. AdministerEpinephr
ine C.Defibrillation
D.Supporttheairway
3. TrueorFalse:PEA(PulselessElectricalActivity)canhavemanypresentations on
the ECG and can sometimes appear as a complete flat line.(Required)
True
Fals
e
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