Appendix 5Answers to Practice Problems
Chapter 1 Answers
| 1.1 | Electricity is the transfer of energy through the motion of charge-carrying electrons. |
| 1.2 | False; subatomic particles are smaller than atoms. |
| 1.3 | 10−12 meters in diameter |
| 1.4 | Electrons, protons, and neutrons |
| 1.5 | 13 |
| 1.6 | Half |
| 1.7 | Coulomb’s law |
| 1.8 | Ionized |
| 1.9 | The coulomb |
| 1.10 | 6.241506 × 1018 |
| 1.11 | (a) Positive; (b) 1/4X coulombs |
| 1.12 | (a) 4Y newtons; (b) 16Y newtons |
| 1.13 | An atom that is missing an electron from its outer orbit or shell |
| 1.14 | Near the speed of light |
| 1.15 | Because the electrons in the outer orbit of an insulator are very tightly bound to the nucleus and they are not easily freed |
| 1.16 | Tungsten |
| 1.17 | Conductivity |
| 1.18 | Because current convention ... |
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