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Questions and Answers
What is represented by Fermi energy in a material?
What is represented by Fermi energy in a material?
- The highest occupied energy level (correct)
- The total energy of the material
- The average energy of all electrons present
- The lowest unoccupied energy level
Which theory is unable to explain the photoelectric effect?
Which theory is unable to explain the photoelectric effect?
- Free Electron Theory
- Valence Bond Theory
- Zero Magnetosun Theory (correct)
- Quantum Free Electron Theory
In Quantum Free Electron Theory, what is the formula for electrical conductivity?
In Quantum Free Electron Theory, what is the formula for electrical conductivity?
- $σ = rac{nt^2}{e}$
- $σ = rac{ne^2τ}{m}$ (correct)
- $σ = rac{e^2τ}{mn}$
- $σ = rac{mτ}{ne^2}$
What aspect of conductivity does the Free Electron Theory highlight at low temperatures?
What aspect of conductivity does the Free Electron Theory highlight at low temperatures?
What is the formula expressing the energy of a free electron in the Quantum Free Electron Theory?
What is the formula expressing the energy of a free electron in the Quantum Free Electron Theory?
Flashcards
Valence Bond Theory
Valence Bond Theory
A theory explaining conductivity by considering the bonds between atoms.
Quantum Free Electron Theory
Quantum Free Electron Theory
A theory explaining electrical conductivity by treating electrons as free particles.
Free Electron Theory
Free Electron Theory
A theory of conductivity focusing on free electrons but considering variations in low temperatures.
Fermi Energy
Fermi Energy
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Zero Magnetosun Theory
Zero Magnetosun Theory
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