C & S Chapter 5 Review Question Answers

RQ5-1.

a. Same

b. Same , but less than a.

c. Same everywhere , less than a.

d. wire coming from battery has twice the current in each branch.

e. i is the same everywhere.

g. Round bulb i > long bulb i . i in leade from battery = i r + i l .

h. i2 = .5 ia.

i. i2 = i1

j. b2 = .5 id

k. Same for series, different for parallel.

RQ5-2. Filiment in glass so it won't burn up in the oxygen.

RQ5-3. Short nichrome hotter than long. Pg 177

RQ5-4. Approximately 45°. pg 176

RQ5-5. Deflection 2 = 9°.

RQ5-6.Page 185. i is the same everywhere in series circuits, but not enough to make the round bulb glow.

RQ5-7. Page 183. 5.4.3b

RQ5-8. 5°. each branch shares i_tot equally.

RQ5-9.Christmas lights wired in parallel is best, that way, when one bulb goes out, they don't all go out.

RQ5-10. i - electrons/s

n - electrons/m3

A - m2

v - m/s

u - (m/s)/(N/C)

RQ5-11. UCu > UFe