Comparison of bar magnet and solenoid:
Similarities:
Both when hang freely stops in N-* direction.
Both attract magnetic substances.
Both have two poles-N pole and * pole.
Like poles repel and unlike poles attract in both of them.
Both show phenomenon of induction.
Dissimilarities:
| | Bar Magnet | Solenoid |
| 1. | Magnetism is strong at its ends and minimum at middle. | They have uniform magnetism inside while at ends it is feeble. |
| 2. | Polarity remain constant. | Polarity at ends depends on direction of flow of current. |
| 3. | They have stable magnetism. | Its magnetism depends on the value of flowing current. |
