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Electromagnetism
Shana Simmons
Physics Per.6
Electromagnetism
• Electromagnetism is the
physics of the
electromagnetic field a
field that encompassing all
of space which exerts a
force on particles that
posses the property of
electric charge. The
magnetic field is produced
by the motion of electric
charge.
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Electromagnetism
• The magnetic field causes
the magnetic associated
also with magnets.
Electromagnetism comes
from the fact that
magnetic and electrical
forces are involved.
Electromagnetism is a
science that deals with
observations relating to
electricity and magnetism.
Electromagnetism
• The magnetic field at
any point is described
in terms of the force
that exerts on a
moving charge.
Electromagnetism is
essentially the
foundation for all or
electrical engineering
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Electromagnetism
• Electromagnetic spectrum is
just a name used by
scientists to categorize
different types of radiation.
Radiation is energy that
travels and spreads out as it
becomes visible light that
comes from a lamp in your
house or radio waves that
come from radio station are
examples of two types of
electromagnetic radiation.
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Electromagnetism
• There are many problems
with energy use and battery
power today. Many devices
especially portable devices
are battery powered for
example ipods, laptops,
cameras, and cell phones.
The problem is each device
has its own power adapter.
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Electromagnetism
• Each one of them are
different from each
other. Energy is used a
lot daily in every
single household even
outdoors. Whether its
stores even if its
restaurants each
conserves a lot of
energy.
Electromagnetism
• Physicists plan to try wireless battery charging
which involves electromagnetism. Their idea is
that the recharge device and the receiver would be
on the same frequency similar to how a radio
picks up only one channel at a time. The energy
would mostly go straight to the intended battery.
Electromagnetism
• Some of the electromagnetic
energy would go somewhere
else and it’s believed that it
wouldn’t harm people nothing
that humans could endure
strong magnetic fields. There’s
one called evanescent coupling
which allow electronic gadgets
to start charging themselves as
soon as their owners walk into
their homes. One idea to make a
wireless charger is to use
electromagnetic induction
which posses an electric current
through a coil to create a
magnetic field.
Electromagnetism
• That induces a current in a neighboring coil. This is the
same way devices like electric math busters are charged. It
has been proposed as a basis universal recharge pad. The
pad could power up all gadgets. Another name for the
rechargeable pad is wild charge. The device requires a
single AC power cord and then can reportedly recharge any
device you lay on top of its surface for example cell
phones
Electromagnetism
• The wireless charger is very
useful and has a positive effect
in many ways. It’s less to worry
about when it comes finding the
correct charger. Technology like
this can allow us to cut some of
the cords used. The new cell
phone charger technology will
set the stage for a whole new
generation for tools that could
be wirelessly charged while
inside the body. The medical
device companies wouldn’t
mind that concept the wireless
charger would also prevent
people from having health
problems.
Electromagnetism
•
Cell phones affect the central
nervous systems. Living creatures
are being found to be influenced by
the most delicate fields of
electromagnetic energy. But the
problem with the wireless charger
is that when charging a cell phone
the devices and charger must be in
close proximity with each other in
order to work efficiently.
Electromagnetism and magnetic
field are used daily in electronic
devices. Whether its cell phones,
microwaves, refrigerators, even a
television. Electromagnetic fields
help with finding better ways of
charging electronic devices.
Electromagnetism
• The solution to this
problem is to make sure
all electromagnetic energy
is used correctly.
Especially cell phones
when using the wireless
pad stay off the phone
while it’s charging instead
when you charge with a
wire you can still
communicate with
someone on the phone.
References
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References
(A) Physics textbook
(B) www.goggle.com
(C) www.askjeeves.co
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Electromagnetism
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