MAGNETISING DEMAGNETISING COIL

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30,000Ugx

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A magnetizing and demagnetizing coil is a fascinating device! Let’s delve into its workings:

Magnetization:
- When you pass direct current (DC) through the coil, it generates a magnetic field.
- This magnetic field aligns the domains within a material (such as iron or a permanent magnet), making it magnetized.
- The coil acts like a temporary magnet, imparting its magnetic properties to the material.
Demagnetization:
- To demagnetize a material, you use alternating current (AC).
- The rapidly changing magnetic field disrupts the alignment of domains in the material.
- As a result, the material loses its magnetization and becomes non-magnetic.
Construction:
- The coil consists of a solenoid wound with insulated copper wire.
- It’s mounted on a base, complete with a switch and 4mm terminals.
- When the switch is closed, current flows through the coil, creating the magnetic field.
Applications:
- Reversing Magnetization: You can use the coil to change the polarity of permanent magnets.
- Erasing Magnetic Media: In data storage, demagnetization erases information from magnetic tapes or hard drives.
- Quality Control: Testing and ensuring proper magnetization in manufacturing processes.