ELECTROMAGNETS
Made by: Jana Taha
ELECTROMAGNET
S
Electromagnet device consisting of a core of magnetic
material surrounded by a coil through which an electric
current is passed to magnetize the core
Electromagnets usually consist of wire wound into a coil. A
current through the wire creates a magnetic field which is
concentrated in the hole in the center of the coil.
•The strength of an electromagnet’s magnetic field may be
increased by:
Increasing the current in the coil
Adding more turns to the coil
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Applications In Real Life:
• Kitchen microwave oven
• Entertainment gadgets like Tv and
phones
• Magnetic suspension trains
• Microphone
• Electric fan
• Electric doorbell
• Storage and recording devices
• Digital camera
• Electric generator convert
chemical or mechanical energy to
electric energy
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WORKING PRINCIPAL OF
ELECTROMAGNETS:
It works on the principle of the magnetic effect of
electric current.
It consists of a long coil of insulated copper wire
wrapped around a soft iron core that is
magnetized only when an electric current passed
through the coil.
To make electromagnet we take a ferromagnetic
material and wrap it with copper wire around it
then the 2 ends of the wire will connect to a
battery to form an electromagnet
By adding number of coils and the size of
the iron core it can have stronger
electromagnet
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