Podcast
Questions and Answers
What is the SI unit of vacuum permittivity, ε0?
What is the SI unit of vacuum permittivity, ε0?
- N⋅m²/C²
- C²⋅N⁻¹⋅m⁻² (correct)
- m²⋅C/N
- C/N
What is the relationship between the magnitude of the electrostatic force and the distance between two point charges?
What is the relationship between the magnitude of the electrostatic force and the distance between two point charges?
- Directly proportional to the product of the magnitudes of charges and directly proportional to the distance between them
- Inversely proportional to the product of the magnitudes of charges and inversely proportional to the distance between them
- Directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them (correct)
- Inversely proportional to the product of the magnitudes of charges and directly proportional to the square of the distance between them
Which statement describes the electrostatic force between two charges with different signs?
Which statement describes the electrostatic force between two charges with different signs?
- The force is unpredictable
- The force is zero
- The force between them is attractive (correct)
- The force between them is repulsive
What is the formula for the electrostatic force between two point charges q and Q at a distance r?
What is the formula for the electrostatic force between two point charges q and Q at a distance r?
What happens to the electrostatic force if the distance between two point charges is doubled?
What happens to the electrostatic force if the distance between two point charges is doubled?
Study Notes
Electrostatic Force and Permittivity
- The SI unit of vacuum permittivity, ε0, is Farads per meter (F/m).
Electrostatic Force and Distance
- The magnitude of the electrostatic force is inversely proportional to the square of the distance between two point charges.
Electrostatic Force Between Charges
- The electrostatic force between two charges with different signs is attractive.
Formula for Electrostatic Force
- The formula for the electrostatic force between two point charges q and Q at a distance r is F = (k * q * Q) / r^2, where k is Coulomb's constant.
Effect of Distance on Electrostatic Force
- If the distance between two point charges is doubled, the electrostatic force becomes one-quarter of its original value.
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Description
Test your understanding of electrostatic force with this quiz! Explore the relationship between the magnitude of charges, distance, and the resulting attraction or repulsion. Sharpen your knowledge of the principles governing electrostatic force between two point charges.
