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hazem Thu 03 Dec 2009, 10:02 am*The electric current has a magnetic effect
electro magnet
it is used to change electric
energy to magnetic energy
*electromagnet consists of :
1-twisted wire in the form of coil
2- wrought iron bar
3-battery
*uses of the electromagnet:
1-winch (crane)
2-electricbell
3-electric mixer
4-disc drive
5-t.v
*the magnetic force of electromagnet
can be increased by:
1-increasing the number of coil turns
2-increasing the intensity of electric current
by using two batteries
electro magnet
it is used to change electric
energy to magnetic energy
*electromagnet consists of :
1-twisted wire in the form of coil
2- wrought iron bar
3-battery
*uses of the electromagnet:
1-winch (crane)
2-electricbell
3-electric mixer
4-disc drive
5-t.v
*the magnetic force of electromagnet
can be increased by:
1-increasing the number of coil turns
2-increasing the intensity of electric current
by using two batteries
