1) When a current flows through a conductor, the actual speed of the electrons i

Question

1)

When a current flows through a conductor, the actual speed of the electrons in the conductor is on the order of a few . . .
a) . . . nm/s.
b) . . . km/s.
c) . . . m/s.
d) . . . mm/s.

2. Consider a graph of Resistivity of a Material vs. Temperature (resistivity along the y-axis and temperature along the x-axis). The slope of this straight line is equal to which of the following?

a) The Dielectric Constant for Temperature for that material
b) The Coulomb Coefficient of Temperature for that material
c) The Ohm coefficient for that material
d) The Temperature Coefficient of Resistivity for that material

At extremely low temperatures--close to absolute zero--the resistivity of any conductor tends to be equal to which of the following?
a) 1 ·m
b) -1 ·m
c) The same as when it was at a temperature of 100°
d) 0 ·m

Explanation / Answer

1) It is in the order of 10-4 m/s

hence the answer is d) 0.1mm/s

2) d) Temperature coeffiecient of Resistivity for that material

3) d) 0 ·m

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