As a copper wire is heated, its length increases by 0.50. What is the change of the temperature of the wire? (Cu = 16.6 106/C)
a. 83.0C
b. 301C
c. 60.2C
d. 226C
e. 377C
[Ques. 2] Four identical 1.5-mF capacitors are connected together electrically. What is the least possible capacitance of the combination?
a. 3.0E4 F
b. 2.5E4 F
c. 3.8E4 F
d. 1.5E3 F
e. 6.7E4 F
[Ques. 3] At 22.0C an aluminum ring has an inner diameter of 7.000 cm, and a brass rod has a diameter of 7.090 cm. Keeping the brass rod at 22.0C, which of the following temperatures of the ring will allow the ring to just slip over the brass rod? (Al = 2.4 105 /C, brass = 1.9 105/C)
a. 536C
b. 418C
c. 190C
d. 558C
e. 725C
[Ques. 4] Two capacitors with CA greater than CB are connected in parallel with a battery. Which of the following is true?
a. There is more potential difference across CA.
b. There is more potential difference across CB.
c. There is the same charge stored on each capacitor.
d. There is the same potential difference across both capacitors.
[Ques. 5] A long steel beam has a length of twenty-eight meters on a cold day when the temperature is 0C. What is the length of the beam on a hot day when T = 39C? (steel = 1.1 105/C)
a. 28.009 m
b. 28.015 m
c. 28.012 m
d. 28.036 m
e. 28.004 m
[Ques. 6] Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true?
a. There is more charge stored on CA.
b. There is more charge stored on CB.
c. There is the same charge stored on each capacitor.
d. There is the same potential difference across both capacitors.
[Ques. 7] An automobile gas tank is filled to its capacity of 22.0 gallons with the gasoline at an initial temperature of 15.6C. The automobile is parked in the Sun causing the gasoline's temperature to rise to 73.6C. If the coefficient of volume expansion for gasoline is 9.60 104/C, what volume runs out the overflow tube? Assume the change in volume of the tank is negligible.
a. 0.329 gallons
b. 1.55 gallons
c. 1.22 gallons
d. 1.53 gallons
e. 0.919 gallons
[Ques. 8] Two capacitors with capacitances of 2.0 and 3.6 F, respectively, are connected in series. The system is connected to a 40-V battery. What charge accumulates on the 2.0-F capacitor?
a. 220 C
b. 31 C
c. 2 100 C
d. 51 C
e. 290 C
[Ques. 9] A brass cube, 13.0 cm on a side, is raised in temperature by 239C. The coefficient of volume expansion of brass is 57 106/C. By what percentage is any one of the 13.0-cm edges increased in length?
a. 0.34
b. 5.9
c. 0.45
d. 1.8
e. 4.3
[Ques. 10] Two capacitors with capacitances of 3.25 and 5.00 F, respectively, are connected in parallel. The system is connected to a 55-V battery. What charge accumulates on the 3.25-F capacitor?
a. 16 C
b. 180 C
c. 0.30 C
d. 3.4 C
e. 1.5 C
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