All Flashcards
What are the key differences between electric force and electric potential?
Electric Force: A vector quantity, describes the interaction between charges. Electric Potential: A scalar quantity, represents potential energy per unit charge.
How does electric potential and electric field vary with distance (r) from a point charge?
Electric Potential: Varies as 1/r. Electric Field: Varies as 1/r^2.
How do you calculate the electric field due to a point charge?
Use the formula: , where k is Coulomb's constant, q is the charge, and r is the distance.
How do you calculate electric flux?
Use the formula: , where E is the electric field, A is the area, and θ is the angle between the field and the area vector.
How do you apply Gauss' Law to find the electric field?
- Choose a Gaussian surface. 2. Calculate the electric flux through the surface. 3. Relate the flux to the enclosed charge using . 4. Solve for the electric field E.
What is the procedure to determine electric potential from electric field?
- Determine the electric field E. 2. Integrate the electric field along a path: . 3. Evaluate the integral to find the potential difference.
How to find the net electric field due to multiple charges?
- Calculate the electric field due to each individual charge. 2. Add the electric field vectors, taking direction into account:
What is electric charge?
A fundamental property of matter that can be positive or negative.
What is Coulomb's Law?
The law that quantifies the electrostatic force between two point charges: .
What is electric potential difference (voltage)?
The work needed to move a charge between two points, measured in volts (V).
What is an electric field?
A region where a charge experiences a force; a vector field with magnitude and direction.
What is electric potential?
The potential energy per unit charge, a scalar quantity measured in volts (V).
What is electric flux?
A measure of the electric field passing through a given area: .
What is Gauss' Law?
Relates the electric flux through a closed surface to the enclosed charge: .