Salma Ahmed
English Lit. GCSE Student
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What factors affect the strength of electromagnetism?
- Words:
- 2061
- Submitted:
- Mon Aug 18 2003
Have a little read: ... Physics Coursework What factors affect the strength of electromagnetism? Planning Introduction A home made magnet is essentially a metal core, with a wire coiled around it. The core should be a 'soft' metal, for example soft iron. A 'soft' metal is one that is easily magnetised and demagnetised, and a 'soft' iron core increases the field strength. A wire coil that carries current is called a solenoid, and this solenoid is wound around the soft iron core. When a current is passed through the circuit, and the coil, a magnetic field is produced at the centre. This aligns the particles in the iron core, which are tiny magnetic domains pointing in all directions in the absence of current, in one direction. A magnetic field is produced around the electromagnet - a magnetic field is a region where magnetic materials (e.g. iron and steel) and also wires carrying a current experience a force acting on
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