# UNIT FIVE: Electricity and Magnetism

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UNIT FIVE: Electricity and Magnetism. Part 16 ElectricityChapter 17 Magnetism. Part Seventeen: Magnetism. 17.1 Properties of Magnets17.2 Electromagnets17.3 Electric Motors and Generators17.4 Generating Electricity. Part 17.2 Learning Goals. Characterize electromagnet.Build a basic electromagnet.Compare perpetual magnets and electromagnets..

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UNIT FIVE: Electricity and Magnetism Chapter 16 Electricity Chapter 17 Magnetism

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Chapter Seventeen: Magnetism 17.1 Properties of Magnets 17.2 Electromagnets 17.3 Electric Motors and Generators 17.4 Generating Electricity

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Chapter 17.2 Learning Goals Define electromagnet. Fabricate a basic electromagnet. Look at changeless magnets and electromagnets.

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Key Question: How are power and attraction related ? Examination 17B Electromagnets

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17.2 Electomagnets Electromagnets are magnets that are made when there is electric current streaming in a wire. The least difficult electromagnet utilizes a curl of wire wrapped around some iron.

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17.2 Right hand run To locate the north post of an electromagnet, utilize the correct hand manage . At the point when the fingers of your correct hand twist toward the wire, your thumb indicates the magnet's north shaft.

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17.2 Electromagnets in Toasters By changing the measure of current, you can undoubtedly change the quality of an electromagnet or even kill its attraction on and. A toaster plate is pulled around an electromagnet while bread is toasting.

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17.2 Doorbells A doorbell contains an electromagnet. At the point when the catch of the chime is pushed, it sends current through the electromagnet.

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17.2 Building an electromagnet You can without much of a stretch form an electromagnet from wire and a bit of iron, for example, a nail. Wrap the wire in many pivots the nail and interface a battery.

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17.2 Building an electromagnet There are two approaches to expand the current in a basic electromagnet: Apply more voltage by including a moment battery. Include more turns of wire around the nail. Why do these two systems work?

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17.2 Similarities in lasting and electromagnets The charged electrons in particles act like little circles of current. Electric current through circles of wire makes an electromagnet. Nuclear scale electric streams make a lasting magnet.

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17.2 Magnetic materials Atoms act like modest magnets. Lasting magnets have their iotas adjusted, making the attractive strengths we watch.

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17.2 Magnetic materials In iron, the molecules are allowed to turn and effortlessly adjust their individual north and south posts.

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17.2 Nonmagnetic materials The iotas in non-attractive materials, similar to plastic, are not allowed to move or change their attractive introduction.