What is Electromagnet in Physics
What is Electromagnet in Physics
If soft iron is inserted in the core of a solenoid, the magnetic field due to the current in the solenoid is multiplied by thousands. When the current is switched off, the magnetic field disappears. Such a magnet which can be energized by an electric current is called an electromagnet.
Reader or tablet? The e-reader, due to its endurance, does not require a large battery, like a tablet, and therefore modern models are very thin and compact. They are easy to put in your pocket or bag and read on public transport, in line or when traveling. Most modern reader models are equipped with wireless modules, and therefore downloading books from cloud storages or official electronic libraries will not be a difficult task. Also, some models of readers are equipped with touch screens, which is convenient when managing content
