Physics Tuition Singapore Secondary Science Tuition – Electricity Magnetic Effect

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Physics Tuition Singapore Secondary Science Tuition – Electricity Magnetic Effect

Magnetic effect

Electric current can induce magnetic effect.

If an iron bar is wound around by a conducting wire which carries electric current, the iron bar will be induced to become a temporary magnet known as an electromagnet

The electromagnet loses its magnetism once the electric current stops flowing.

Electromagnet is used widely in our daily life such as in a telephone, lifting heavy steel or iron objects, electric motor and door bell.

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