1. If the areas are A1 and A-A1.
C \muF, q = 28.8 \muC
C2 C24 = 12 \muF
C1234 = 3 \muF q =36 \muC

2. Chapter 26 Current and Resistance
In this chapter we will introduce the following new concepts:
-Electric current ( symbol i ) Electric current density vector (symbol ) Drift speed (symbol vd ) Resistance (symbol R ) and resistivity (symbol ρ ) of a conductor -Ohmic and non-Ohmic conductors
We will also cover the following topics:
-Ohm’s law Power in electric circuits
(26 - 1)

3. HITT
The plate areas and plate separations of five parallel plate capacitors are
capacitor 1: area A0, separation d0
capacitor 2: area 2A0, separation 2d0
capacitor 3: area 2A0, separation d0/2
capacitor 4: area A0/2, separation 2d0
capacitor 5: area A0, separation d0/2
Rank these according to their capacitances, least to greatest.
a. 1,2,3,4,5 b. 5,4,3,2,1 c. (524) (13) d. (412) (53)
e. 3,5, (1,2), 4 d

4. A B
(26 - 2)

5. (26 - 3) i
+ q
conductor i
- q
conductor

6. i
+ q
conductor A i
- q
conductor A
(26 - 4)

7. (26 - 5)

8. + - i V R
(26 - 6)

9. + - i V
(26 -7)

10. (26 -8)

11. (26 - 9)

12. ( )

13. ( )

14. ( )

15. V
( )

16. hitt
To store a total of J of energy in the two identical capacitors shown, each should have a capacitance of:
A \muF
B \muF, \muF
C. 1.0 \muF
D. 1.5 \muF
E. 2.0 \muF