Podcast
Questions and Answers
What does the solid line in the graph represent?
What does the solid line in the graph represent?
- Thermal conductivity vs. electrical conductivity relationship
- Wiedemann-Franz Law (correct)
- Thermal energy carried by conducting electrons
- Specific heat capacity of metals
At 20°C, which material shows the highest thermal conductivity among the listed metals?
At 20°C, which material shows the highest thermal conductivity among the listed metals?
- Gold
- Nickel
- Copper
- Silver (correct)
What is the relationship between thermal conductivity and electrical conductivity according to the Wiedemann-Franz Law?
What is the relationship between thermal conductivity and electrical conductivity according to the Wiedemann-Franz Law?
- They are exponential functions of each other
- They are directly proportional (correct)
- They are inversely proportional
- There is no relationship between them
Which metal has the lowest thermal conductivity among the listed materials at 20°C?
Which metal has the lowest thermal conductivity among the listed materials at 20°C?
What is the main carrier of thermal energy in metals?
What is the main carrier of thermal energy in metals?
Based on the graph, which material shows both high thermal and electrical conductivity?
Based on the graph, which material shows both high thermal and electrical conductivity?
What is responsible for the conduction of heat in insulators?
What is responsible for the conduction of heat in insulators?
How are conduction electrons in metal frequently and randomly scattered?
How are conduction electrons in metal frequently and randomly scattered?
What is the result of applying an electric field to a metal with conduction electrons?
What is the result of applying an electric field to a metal with conduction electrons?
Which type of motion characterizes a conduction electron in a metal in the absence of an applied field?
Which type of motion characterizes a conduction electron in a metal in the absence of an applied field?
What effect does the presence of an applied field have on the motion of a conduction electron?
What effect does the presence of an applied field have on the motion of a conduction electron?
Which process is involved in the conduction of heat in insulators?
Which process is involved in the conduction of heat in insulators?
What is the average velocity at which electrons drift in a conductor when an electric field is applied?
What is the average velocity at which electrons drift in a conductor when an electric field is applied?
In the context of metal conductivity, what is the term used for the physical origin of molecular field theory?
In the context of metal conductivity, what is the term used for the physical origin of molecular field theory?
Which type of conductivity is associated with the drift of electrons in a conductor when an electric field is applied?
Which type of conductivity is associated with the drift of electrons in a conductor when an electric field is applied?
What is the relation between polarizability and frequency in dielectrics, as discussed in the provided text?
What is the relation between polarizability and frequency in dielectrics, as discussed in the provided text?
What is the primary classification for types of magnetic materials discussed in the text?
What is the primary classification for types of magnetic materials discussed in the text?
In the context of heat conduction in insulators, which factor plays a significant role?
In the context of heat conduction in insulators, which factor plays a significant role?
