Podcast
Questions and Answers
In a conductor, which particles are primarily responsible for facilitating electrical conduction?
In a conductor, which particles are primarily responsible for facilitating electrical conduction?
- Bound electrons, tightly held within the atomic structure.
- Protons found within the atomic nucleus.
- Free electrons located in the valence level. (correct)
- Neutrons, which contribute to atomic mass but not charge.
If a conductor carries a steady current of 3 amperes for 10 seconds, what is the total charge that passes through a cross-section of the conductor?
If a conductor carries a steady current of 3 amperes for 10 seconds, what is the total charge that passes through a cross-section of the conductor?
- 3 Coulombs
- 0.3 Coulombs
- 30 Coulombs (correct)
- 10 Coulombs
How does increased temperature typically affect the conductivity of a metallic conductor?
How does increased temperature typically affect the conductivity of a metallic conductor?
- Causes a phase transition to a superconducting state.
- Decreases conductivity due to increased electron-phonon collisions. (correct)
- Has no effect on conductivity.
- Increases conductivity due to enhanced electron mobility.
Which of the following materials would be the LEAST suitable choice for use as a conductor in electrical wiring?
Which of the following materials would be the LEAST suitable choice for use as a conductor in electrical wiring?
What distinguishes an electrical conductor from an insulator at the atomic level?
What distinguishes an electrical conductor from an insulator at the atomic level?
Flashcards
Free electrons
Free electrons
Electrons that are not tightly bound to the atoms and are free to move within the material.
What is the role of free electrons?
What is the role of free electrons?
The particles responsible for electrical conduction in conductors.
What is electric current?
What is electric current?
The amount of electrical charge flowing past a point in a circuit per unit time.
How to calculate charge (Q)?
How to calculate charge (Q)?
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What charge passes with 3A for 10s?
What charge passes with 3A for 10s?
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