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This document appears to be notes from a physics lecture or textbook covering several topics: 1) It discusses Coulomb's law and the relationship between electric force and gravitational force. 2) It covers concepts related to voltage, current, and resistance including Ohm's law. Circuits are discussed including those in series and parallel. 3) Measurement units for current are defined ranging from amps to microamps. Formulas for resistance, power, and combining resistances are also shown.
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- 1. SC 102 303
- 2. SC 102 305
- 3. 306 SC 102
- 4. 1. 2. 3. 4. 5. 1.2 fqf$ro#n;( COULOMB ¨ LAW ) SC 102 307
- 5. ~~5&h=l%l F e = k.q¨/: u5Ghplu￣96an Fg = Gm? r2 F./Fg = (k/G)(q¨/m¨) mud1 e = - 1.6 x 10% MI: m= 9.1 x 10.＾kg &t&d Fe/Fg = 4.2~10~¨ 308 SC 102
- 6. SC 102 309
- 7. 1 ke. m .s-* C lN,tll/C: m lN/C 1 ( kg. m.s2 ) / C 3 1 0 SC 102
- 8. SC 102 311
- 10. -
- 11. 3 1 4 SC 102
- 13. 1.5 v b 3.0 V) 4.5 v (a) 3 1 6 SC 102
- 14. -I--++-I--++1.5 v1.5 v 1.5 v1.5 v 1.5v I1.5v I .LIt-J.LIt-JII LOADLOAD (h) Ohm¨s law 317
- 15. I I --L 1 0 V 318 SC 102
- 16. SC 102 3 1 9
- 18. l.I,+I,=v +-1L｀5 ｀5 SC 102 321
- 19. (7.15) an] 7.13 322 SC 102
- 20. SC 102 323
- 21. - 324 SC 102
- 22. nx66tib'% 0.S A 6iiafllslnGQ~l9~u66%~ 0.1-0.2 A WIU 0.05-O.lA Mtpl'Ml"%Q 0.02-0.05A "~lilP16~~6ii~~~~,~-~~~~~l~66~~ O.Ol-0.02A Sm6lunlafi O.OOS-0.01A Ht%Gh&lu O.OOl-0.005A hlBiilCp~~~"lki I = Aq/At wr = q￣ R = VII P *= IV = ｀f/R = I¨/ R SC 102 325
- 23. ~ahwiueiasynsu R = R, + R, + R,+ . . . . . . . . . . . . . . . . ~a#huwiu~suuiu R = R,R,/(R, + R2) 66wwmf asodw 1. 2. 3. 4. 5. 326
- 24. 1. n~:aew"wb~tru~~~'er~bfiwsew"nar"2ruqsaww~ :~wl~wal~~~l~dla6w~,2541 2. Jones,Edwin R., and Richard L.Childers Contemporary College Physics Addison-Wesley Publishing Co. Inc. 1993 SC 102 327