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☆☆☆☆☆Cards in this guide (12)
What is produced if the poles of atoms line up in the same direction
domains
What is the imaginary line halfway between the maximum and minimum points the wave reaches vertically
The term is "resting position" (also equilibrium position).
What is the magnetic field of an electromagnet similar to
a bar magnet...
What part of an electric motor repels the poles of the permanent magnets
commutator
What is the distance from the rest position to the wave's crest
the answer is amplitude. for a+ users.
The discovery of electromagnets led to the invention of electric motors
True...
Which of these must be used to create an electromagnet
coils of wire, iron, and electric current
What does an electric motor use an electromagnet to do
Convert electrical energy to energy of motion...
Which country was Hans Christian Oersted from
Denmark.
What terms is a preiod measured in
If you're talking about a period printed at the end of a sentence, then it has
no dimensions, and can only be described as a location.
If you're talking about a period of time or a period in history, then the size of it
is measured in units of time ... seconds, minutes, weeks, centuries, etc. ... and
its beginning and end are stated in terms of absolute points in time, such as the
reading on a clock, or the date on a calendar.
What are the two equations that can be used to determine the speed of a wave
i7tgu
Both permanent magnets and electromagnets hold their magnetism for a long period of time.
false
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