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Magnetism and Electromagnetism

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Question
Answer
1) ? is a force that acts at a distance and is caused by a magnetic field.   show
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2 ) A(n) ? is easily magnetized.   show
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3) A ? can hold its magnetism for a long period of time.   show
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show A. True  
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5) Unlike magnetic poles attract.   show
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show A. True  
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show D. organized molecular magnets so that the individual fields add together  
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8) Permanent magnets might be demagnetized by a sharp blow.   show
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9) Permanent magnets might be demagnetized by extreme cold.   show
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show A. Electromagnetism  
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11) The left-hand rule can be used to determine the polarity of a coil.   show
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show B. Magnetic field intensity  
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13) Match the magnetic unit of measure that it is analogous (similar in some respect) to.   show
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14) Permeability is a measure of the ability of a material to conduct magnetic flux.   show
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show A. True  
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show B. False  
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show A. True  
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18) Nickel is a ferromagnetic material.   show
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19) Given the information in the Relative Permeability Chart, ? should be used as a transformer core to get the highest flux density for a given input before saturation occur.   show
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show A. True  
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show A. True  
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22) When a magnetic circuit reaches a point of saturation, ? .   show
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show A. I. and II.  
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24) Each normal magnetization curve, or B-H curve, has a knee where increases in the field strength no longer have much effect on the magnetic flux density. As more magnetic flux gets forced into the same area, more magnetic domains are available...   show
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show B. False  
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Created by: kwineinger13
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