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Mechatronics

Teach Yourself Electricity and Electronics 5th Edition Ch 1 Quiz

Question.
2. The number of protons in the nucleus of an electrically neutral atom Constitutes it's atomic number.
3. The atomic weight of an electrically neutral atom Approximately equals the number of neutrons plus the number of protons.
4. When an atom has a net positive charge, we call it A cation.
5. A carbon atom can have More than one isotope.
6. An element who's molecules contain two atoms Is diatomic.
7. A monatomic compound Cannot exist; it's a contradiction in terms.
8. Ionization can sometimes cause The conductivity of a substance to improve.
9. Of the following substances, which one is the best electrical conductor Silver
10. Dry air is normally a poor conductor of electricity because the molecules are far apart.
11. If we place an EMF of 2 V across a component whose resistance equals 1 ohm, how much current will flow through the component? 2 A
12. If we double the potential difference in the scenario of Question 11 ( If we place an EMF of 2 V resistance 1 ohm, how much current will flow) but don't change the components resistance, the current the current through the component will double
13. In electronics, the term hole refers to a place in an atom where an electron would normally exist, but doesn't.
14. Which of the following statements can we make if we want to generalize about good electrical conductors? they always have low resistance.
15. We can express the number of electrical charge carriers on an object in coulombs.
16. A stroke of lightening, the current results from sudden, rapid movement of electrons.
17. We can use ohms to directly express or measure resistance.
17. What type of device converts chemical energy to electrical energy? A battery
19. What type of device converts mechanical energy to electrical energy? A generator
20. What type of device converts electrons directly into protons? None of the above
1. The number of electrons in an electrically neutral atom Equals the number of protons.
Created by: Patiencetlewis
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