10 Questions
Which of the following is the fundamental unit of electric charge?
Coulomb
What is the relationship between the electrostatic force and the distance between charges?
Inversely proportional
What happens when two unlike charges are brought close to each other?
They attract each other
What is the electric charge distribution like on a conductor?
Uniform throughout
What is the study of stationary electric charges called?
Electrostatics
Which of the following materials exhibits no resistance below a critical temperature?
Superconductor
What is the principal material used in semiconduction?
Silicon
Which of the following materials allows electron flow easily under certain conditions and behaves as an insulator under other conditions?
Semiconductor
What is the unit of measurement for electric current?
Amperes
What is the flow of electrons through a conductor called?
Electricity
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.
Test your knowledge on electrostatics and electric charges with this quiz! Learn about the study of stationary electric charges, the smallest units of electric charge (electrons and protons), the concept of matter having mass and energy equivalence, and the terms electrified and electric ground. Challenge yourself with questions on Coulombs and electron conversions.
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