Podcast
Questions and Answers
Which of the following is the fundamental unit of electric charge?
Which of the following is the fundamental unit of electric charge?
- Protons
- Coulomb (correct)
- Electric ground
- Electrons
What is the relationship between the electrostatic force and the distance between charges?
What is the relationship between the electrostatic force and the distance between charges?
- Directly proportional
- Inversely proportional (correct)
- Depends on the charges
- No relationship
What happens when two unlike charges are brought close to each other?
What happens when two unlike charges are brought close to each other?
- They repel each other
- They attract each other (correct)
- No interaction
- Depends on the charges
What is the electric charge distribution like on a conductor?
What is the electric charge distribution like on a conductor?
What is the study of stationary electric charges called?
What is the study of stationary electric charges called?
Which of the following materials exhibits no resistance below a critical temperature?
Which of the following materials exhibits no resistance below a critical temperature?
What is the principal material used in semiconduction?
What is the principal material used in semiconduction?
Which of the following materials allows electron flow easily under certain conditions and behaves as an insulator under other conditions?
Which of the following materials allows electron flow easily under certain conditions and behaves as an insulator under other conditions?
What is the unit of measurement for electric current?
What is the unit of measurement for electric current?
What is the flow of electrons through a conductor called?
What is the flow of electrons through a conductor called?
Flashcards
Fundamental unit of electric charge?
Fundamental unit of electric charge?
Coulomb
Electrostatic force vs. distance?
Electrostatic force vs. distance?
Inversely proportional
Behavior of unlike charges?
Behavior of unlike charges?
They attract each other
Charge distribution on a conductor?
Charge distribution on a conductor?
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Study of stationary electric charges?
Study of stationary electric charges?
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Material with no resistance at critical temperature?
Material with no resistance at critical temperature?
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Principal material in semiconduction?
Principal material in semiconduction?
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Material that changes conductivity?
Material that changes conductivity?
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Unit of measurement for electric current?
Unit of measurement for electric current?
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Flow of electrons through a conductor?
Flow of electrons through a conductor?
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Study Notes
Electric Charge and Current
- The fundamental unit of electric charge is the coulomb (C).
Electrostatic Force
- The electrostatic force between two charges is inversely proportional to the square of the distance between them.
Interaction of Charges
- When two unlike charges (opposite signs) are brought close to each other, they attract each other.
- When two like charges (same sign) are brought close to each other, they repel each other.
Electric Charge Distribution
- On a conductor, electric charge distributes itself evenly on the surface.
Study of Stationary Electric Charges
- The study of stationary electric charges is called electrostatics.
Superconductors
- Certain materials exhibit no resistance below a critical temperature, known as superconductors.
Semiconduction
- Silicon is the principal material used in semiconduction.
Semiconducting Materials
- Semiconducting materials allow electron flow easily under certain conditions and behave as insulators under other conditions.
Electric Current Measurement
- The unit of measurement for electric current is the ampere (A).
Electric Current Flow
- The flow of electrons through a conductor is called electric current.
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