Distinguish, differentiate, compare and explain what is the difference and similarities between Bar Magnet and Solenoid. Similarity, Comparison and Differences.
Differences between Bar Magnet and Solenoid
| S.No. | Bar Magnet | Solenoid |
| 1 | It has its natural magnetism. | Its magnetism is created like a type of artificial magnetism. |
| 2 | Its magnetism cannot be destroyed; it is always present. | Its magnetism can be destroyed or it can be stopped anytime. |
| 3 | Its magnetism does not depend on any external applied factor. | Its magnetism depends on various external applied factors like current, number of turns etc. |
| 4 | Its magnetism cannot be increased or decreased by any other external way. | Its magnetism can be increased or decreased depending upon our requiremnets. |
Similarities between Solenoid and Bar Magnet
- Both have attractive and directive properties.
- There magnetic field lines are exactly identical.
What is a Bar Magnet ?
A bar magnet has two poles. One pole is designated as the North pole and the other as the south pole. When iron filings are sprinkled around a bar magnet, they are arranged in a pattern similar to the one seen around a current carrying solenoid.
Bar magnet as an equivalent solenoid
Ampere hypothesized that all magnetic phenomenon are due to circulating currents. The similarity between magnetic field lines produced due to a bar magnet and a current carrying solenoid suggests that a bar magnet may be thought of as a large number circulating atomic currents in analogy with a solenoid.
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Similarities and Difference between Bar Magnet and Solenoid
Similarities between Difference between Bar Magnet and Similarities
