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Electromagnetism worksheets, questions and revision for GCSE Combined Science and Physics. All the revision you need in one place.
An electromagnet can be defined as a magnet which functions on electricity. Unlike a permanent magnet, the strength of an electromagnet can be changed by changing the amount of electric current that flows through it. If the current flow is cut, the property of magnetism ceases to exist.
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- A magnet that consists of a piece of iron or steel surrounded by a coil is known as an electromagnet. The metal becomes magnetic when an electric c...
- A magnet has three properties and that are attractive prosperity, repulsive property and directive property.
- An object which is capable of producing magnetic fields and attracting unlike poles and repelling like poles.
- Permanent magnets find applications in generators, electric accelerators, and electric motors.
- Electromagnets can store huge amounts of energy in their magnetic field. If the electric current is interrupted, the energy will discharge. Also, t...
Key learning points. When there is an electric current in a wire, there is a magnetic field around the wire. When there is an electric current in a coil of wire, the magnetic field around each loop adds to make a stronger field. An electromagnet is made by wrapping a coil of wire around a core.
electromagnet. A magnet made by wrapping a coil of wire around an iron bar and passing an electric current through the coil. The iron core increases the solenoid’s magnetic field...
Electromagnet - A magnet made by running current through a coil of wire round an iron core. Temporary magnet - An electromagnet that loses its magnetism when current stops flowing through it. Electric lock - A lock that can be opened with an electromagnet when a switch is closed.
Created Date 1/17/2017 5:36:35 PM
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Jul 18, 2024 · Electromagnetism is incredibly powerful, governing everything from atomic interactions in materials to the behavior of galaxies in the universe. Master Electromagnetism: Definitions, Types, Key Laws, and real-life applications. 🌟 Enhance your understanding of this vital force! 🧲.
