All Flashcards
Compare electrostatic and gravitational forces.
Electrostatic: Attracts and repels, strong at small scales. Gravitational: Only attracts, weaker at small scales, dominates at large scales.
Differentiate permittivity in conductors vs. insulators.
Conductors: High permittivity due to free electrons. Insulators: Low permittivity due to restricted electron movement.
What is electric force?
The fundamental force governing interactions between charged objects, causing attraction or repulsion.
Define electric permittivity ().
A measure of how easily a material polarizes in an electric field.
What is free space permittivity ()?
The permittivity of a vacuum; a fundamental constant in physics formulas.
Define polarization in the context of electric fields.
The rearrangement of electrons in a material under an electric field, creating charge separation.
What is the difference between conductors and insulators in terms of permittivity?
Conductors have high permittivity due to free electrons, while insulators have low permittivity due to restricted electron movement.
Compare electrostatic and gravitational forces.
Electrostatic: Attracts and repels, strong at small scales. | Gravitational: Only attracts, weak at small scales, dominates at large scales.
Compare the behavior of like and opposite charges.
Like charges: Repel each other. | Opposite charges: Attract each other.
Compare permittivity in conductors vs. insulators.
Conductors: High permittivity due to many free electrons. | Insulators: Low permittivity due to restricted electron movement.