Podcast
Questions and Answers
What does the solid line in Fig 2.10 represent?
What does the solid line in Fig 2.10 represent?
- Conduction electrons
- Lattice vibrations
- Thermal conductivity (correct)
- Electrical conductivity
Which material has the highest electrical conductivity?
Which material has the highest electrical conductivity?
- Mercury (Hg)
- Gold (Au) (correct)
- Aluminum (Al)
- Steel (1080)
What is the relationship between thermal conductivity and electrical conductivity according to Fig 2.10?
What is the relationship between thermal conductivity and electrical conductivity according to Fig 2.10?
- They are inversely proportional (correct)
- They have an exponential relationship
- They are directly proportional
- They are not related
Which metal/alloy has the lowest thermal conductivity?
Which metal/alloy has the lowest thermal conductivity?
What is responsible for carrying thermal energy in metals, as mentioned in the text?
What is responsible for carrying thermal energy in metals, as mentioned in the text?
In what type of materials do lattice vibrations play a significant role in heat conduction?
In what type of materials do lattice vibrations play a significant role in heat conduction?
Which metal has the highest resistivity at room temperature?
Which metal has the highest resistivity at room temperature?
At what approximate temperature does nickel go through a magnetic to non-magnetic transformation?
At what approximate temperature does nickel go through a magnetic to non-magnetic transformation?
What metal has a resistivity that decreases most significantly with increasing temperature?
What metal has a resistivity that decreases most significantly with increasing temperature?
Which metal undergoes a magnetic to non-magnetic transformation at approximately 627 K?
Which metal undergoes a magnetic to non-magnetic transformation at approximately 627 K?
What type of transformation does iron go through at approximately 1043 K?
What type of transformation does iron go through at approximately 1043 K?
Which metal has the highest resistivity among the listed metals?
Which metal has the highest resistivity among the listed metals?
What is the relationship between resistivity and temperature in copper above 100 K?
What is the relationship between resistivity and temperature in copper above 100 K?
At low temperatures, what is the relationship between resistivity and temperature in copper?
At low temperatures, what is the relationship between resistivity and temperature in copper?
What does the inset on the log-log plot below 100 K show about the relationship between resistivity and temperature?
What does the inset on the log-log plot below 100 K show about the relationship between resistivity and temperature?
What temperature is near the melting point of copper mentioned in the text?
What temperature is near the melting point of copper mentioned in the text?
In what condition is the power radiated from a light bulb equal to the electrical power dissipated in the filament?
In what condition is the power radiated from a light bulb equal to the electrical power dissipated in the filament?
What is the nature of metal conductivity discussed in the text?
What is the nature of metal conductivity discussed in the text?
