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As you have learned, an electromagnet is a magnet that is produced by electric current. Think about how electromagnets are used and what you have seen or heard of them being used for. In your initial discussion post, respond to the following: Which of the principles or laws discussed in this module explain how an electromagnet works? Describe in detail two modern applications of electromagnets. Do these electromagnets draw a large amount of current or a little? How do you know? What supplies that current? Why do you think electromagnets are used in these different ways? What is the advantage of using an electromagnet rather than a permanent magnet?
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