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Electronic Labs_34

Electronic Labs_34 - 1'30 UNIT ONE Self-Review Answers 8...

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Unformatted text preview: 1'30 UNIT ONE Self-Review Answers 8. Substances that have very few free electrons are called insulators. 9. Substances that have a large number of free electrons are called conductors. 10. A directed drift of free electrons is called current flow. 11. In an electrical circuit electrons flow from the negative terminal of the battery to the positive terminal. 12. A drawing that uses symbols to represent circuit components is known as a schematic diagram. 13. Figure 1-17 shows the following schematic symbols: A. Battery. E. Light bulb. C. Closed switch. D. Open switch. 14. The unit of current is the ampere. ...
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