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science
Essay specific features
Written by:
Rosa S
Date added:
May 10, 2011
Level:
University
Grade:
A
No of pages / words:
4 / 967
Was viewed:
7564 times
Rating of current essay:
Essay content:
This is because the current emitted from the battery to the coils magnetises the nail. This is known as an electromagnet. The current passing through an electromagnet produces a magnetic field. Therefore, the more turns of the coil you have, the greater the magnetic field and the stronger the electromagnet...
displayed 300 characters
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This will mean more paper clips being picked up by the nail. The strength of an electromagnet can also be altered by varying the current or voltage. The more induced voltage, the stronger the electromagnet. An alternative way to strengthen an electromagnet is to replace the core with a "soft" iron core...
displayed 300 characters
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