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(a) What is an electromagnet? Draw a labelled diagram to show the making of a simple electromagnet.(b) State three factors on which the strength of an electromagnet depends. How does the strength of electromagnet depend on these factors? |
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Answer» (a) What is an electromagnet? Draw a labelled diagram to show the making of a simple electromagnet. (b) State three factors on which the strength of an electromagnet depends. How does the strength of electromagnet depend on these factors? |
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