Question
Fri November 04, 2011 By: Hussain Shaikh

basic properties of bar magnet that resemble with current carrying solenoid

Expert Reply
Sat November 05, 2011
Solenoid is comprised of a conducting rod with turns of a wire all over its length and when electricity is passed through that wire the core or that rod gets magnetised making this setup a strong magnet and as its due to electricity, its rightly called an electromagnet. It behaves like a magnet only till electricity is kept flowing otherwise it loses its magnetism hence it is also called a temporary magnet also. Bar magnet is a natural magnet and it behaves as such without any external influence. Its magnetic field or the area in which its magnetism can be observed is quite small compared to a solenoid which is a stronger magnet. 
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