Magnet / चुंबक
The source describes a magnet as a piece of iron or another material capable of attracting iron-containing objects and pointing towards north when freely suspended.
Magnet ऐसा material है जो iron-containing objects को attract कर सकता है और freely suspend करने पर north direction की ओर point करता है।
Magnetic Poles / चुंबकीय ध्रुव
When a magnet is freely suspended, one pole points towards north and is called the North Pole. The other is called the South Pole.
Freely suspended magnet का एक pole North की ओर point करता है जिसे North Pole कहा जाता है। दूसरा South Pole कहलाता है।
Law of Magnetic Poles / चुंबकीय ध्रुवों का नियम
- Like poles repel each other. / समान poles repel करते हैं।
- Unlike poles attract each other. / असमान poles attract करते हैं।
Electromagnet / विद्युत चुंबक
A current-carrying coil containing a soft iron core is called an electromagnet.
Soft iron core वाली current-carrying coil को Electromagnet कहा जाता है।
Uses of Electromagnets / विद्युत चुंबक के उपयोग
- Electric bell / Electric Bell
- Telegraph receiver / Telegraph Receiver
- Telephone / Telephone
- Transformer / Transformer
- Dynamo / Dynamo
Quick Revision / त्वरित पुनरावृत्ति
- Freely suspended magnet → Points North-South
- Like poles → Repel
- Unlike poles → Attract
- Current-carrying coil + soft iron core → Electromagnet
Magnet / चुंबक
The source describes a magnet as a piece of iron or another material capable of attracting iron-containing objects and pointing towards north when freely suspended.
Magnet ऐसा material है जो iron-containing objects को attract कर सकता है और freely suspend करने पर north direction की ओर point करता है।
Magnetic Poles / चुंबकीय ध्रुव
When a magnet is freely suspended, one pole points towards north and is called the North Pole. The other is called the South Pole.
Freely suspended magnet का एक pole North की ओर point करता है जिसे North Pole कहा जाता है। दूसरा South Pole कहलाता है।
Law of Magnetic Poles / चुंबकीय ध्रुवों का नियम
Like poles repel each other. / समान poles repel करते हैं।
Unlike poles attract each other. / असमान poles attract करते हैं।
Electromagnet / विद्युत चुंबक
A current-carrying coil containing a soft iron core is called an electromagnet.
Soft iron core वाली current-carrying coil को Electromagnet कहा जाता है।
Uses of Electromagnets / विद्युत चुंबक के उपयोग
Electric bell / Electric Bell
Telegraph receiver / Telegraph Receiver
Telephone / Telephone
Transformer / Transformer
Dynamo / Dynamo
Quick Revision / त्वरित पुनरावृत्ति
Freely suspended magnet → Points North-South
Like poles → Repel
Unlike poles → Attract
Current-carrying coil + soft iron core → Electromagnet