All Flashcards
Steps to apply Gauss's Law?
- Choose a Gaussian surface. 2. Calculate the electric flux through the surface. 3. Determine the enclosed charge. 4. Apply Gauss's Law to solve for the electric field.
How to find electric field with spherical symmetry?
- Choose a spherical Gaussian surface. 2. Calculate flux: . 3. Find enclosed charge. 4. Apply Gauss's Law: .
Steps to calculate electric flux?
- Define the area vector. 2. Determine the electric field vector. 3. Calculate the dot product: .
How to calculate enclosed charge with non-uniform density?
- Define the volume element . 2. Express charge density as function of position . 3. Integrate: .
Steps to find electric potential from electric field?
- Define the path of integration. 2. Calculate the line integral: .
How to determine if net flux is zero?
- Count electric field lines entering. 2. Count electric field lines exiting. 3. If entering = exiting, net flux = 0.
Difference between uniform and non-uniform charge density?
Uniform: Charge evenly distributed. | Non-uniform: Charge density varies with position.
Difference between flux entering and exiting a closed surface?
Entering: Negative flux. | Exiting: Positive flux.
Differences between conductors and insulators regarding electric fields?
Conductors: Electric field inside is zero. | Insulators: Electric field can exist inside.
Differences between electric flux and electric field?
Electric flux: Measure of field lines through an area. | Electric field: Force per unit charge at a point.
Differences between using Gauss's Law with spherical vs. cylindrical symmetry?
Spherical: Use spherical Gaussian surface, . | Cylindrical: Use cylindrical Gaussian surface, .
Label the diagram of electric flux through an area.
1: Electric Field Lines, 2: Area Vector, 3: Angle
Label the diagram illustrating net flux through a closed surface.
1: Lines Entering (Negative Flux), 2: Lines Exiting (Positive Flux)
Label the components of Gauss's Law formula.
1: Electric Flux (), 2: Surface Integral (), 3: Enclosed Charge (), 4: Permittivity of Free Space ()
Label the diagram of a spherical Gaussian surface.
1: Gaussian Surface, 2: Radius (r), 3: Charge (Q)
Label the diagram of applying Gauss's Law to a sphere.
1: Spherical Charge Distribution, 2: Gaussian Surface, 3: Electric Field (E)