Electro Magnet
Electro-Magnets
Magnetic Effect of Electricity:
Electromagnets: When a piece of iron is placed inside a solenoid, which is carrying current, the iron becomes strongly magnetised. The strength of the magnet will depend on:
(a) the number of turns in the coil - the larger the number, the stronger the magnetism;
(b) the strength of the current- the larger the current, the stronger the field; and
(c) the nature of core material. When the current is switched off. the iron ceases to be a magnet.
This arrangement is called an electromagnet,
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