ELECTROMAGNETIC DOMAIN THEORY
- The domain theory states that inside a magnet, there are small regions where the magnetic direction of all atoms is aligned in the same direction.
- These regions are called domains.
- Within a domain, the alignment of the magnetic direction is uniform.
Illustration required
ELECTROMAGNETISM
- Electromagnetism is the phenomenon where a metallic object acquires magnetic properties when an electric current flows through it.
- When the current ceases, the object loses its magnetic properties.
ELECTROMAGNETS
- Electromagnets are temporary magnets created by placing a ferrous material (e.g., soft iron) inside a solenoid with direct current.
- The solenoid becomes magnetized when the circuit is closed and demagnetizes when the current is turned off.
PATTERNS OF ELECTROMAGNETS
The magnetic field around an electromagnet depends on the flow of direct current through the solenoid.