Peoples Physics Book Version-3

http://www.ck12.org Chapter 15. Electric Circuits: Capacitors

2. 123μF


3. 
   
   
   
   0. 073 μF
   
   
   1. 4× 107 V
   
   
   2. 4× 109 J
      4..
   
   
   3. 100 V
   
   
   4. A greater voltage created a stronger electronic field, or because as charges build up they repel each other
      from the plate.
   
   
   
   


4. 21 V,V is squared so it doesn’t act like problem 4
   
   
   1. 3.3 F
   
   
   2. 54Ω
   
   
   3. 200 V
   
   
   4. 5× 10 −^9 F
   
   
   5. 
      
      
      
      2. 5 × 10 −^9 F
      
      
      
      
   
   
   6. 6V
   
   
   7. 0.3A
   
   
   8. 18V
   
   
   9. 
      
      
      
      3. 6 × 10 −^4 C
      
      
      
      
   
   
   10. 
       
       
       
       3. 2 × 10 −^3 J
          a. 80μF
          b. 40μF
          c. 120μF
       
       
       
       
   
   
   11. 
       
       
       
       26. 7 μF
       
       
       
       
   
   
   12. 
       
       
       
       166. 7 μF
       
       
       
       
   
   
   13. 
       
       
       
       19. 0 × 103 N/C
       
       
       
       
   
   
   14. 
       
       
       
       1. 4 × 10 −^15 N
       
       
       
       
   
   
   15. 
       
       
       
       1. 6 × 1015 m/s^2
       
       
       
       
   
   
   16. 
       
       
       
       3. 3 × 10 −^11 s
       
       
       
       
   
   
   17. 
       
       
       
       8. 9 × 10 −^7 m
       
       
       
       
   
   
   18. 
       
       
       
       5. 1 × 10 −^30
          6..
          7..
       
       
       
       
   
   
   
   


5. 10 V
   
   
   1. 0.43 seconds
   
   
   2. 1.8 seconds
   
   
   3. 
      
      
      
      4. 7 × 10 −^4 C
      
      
      
      
   
   
   4. No, it will asymptotically approach it.
   
   
   5. The graph is same shape as the Q(t) graph. It will rise rapidly and then tail off asymptotically towards
      12 V.
   
   
   6. The voltage across the resistor is 12 V minus the voltage across the capacitor. Thus, it exponentially
      decreases approaching the asymptote of 0 V.
   
   
   
   


6. about 128kΩ