Calculus-based electricity and magnetism concepts including Gauss's law, circuits, and Maxwell's equations for a college physics sequence.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- What is Coulomb's law?
- The force between two point charges is proportional to the product of their charges and inversely proportional to the square of the distance between them.
- Define electric field.
- The force per unit positive test charge exerted at a point in space.
- What is the electric field at distance r from a point charge q?
- E = kq/r^2, where k is Coulomb's constant.
- What does the superposition principle say about electric fields?
- The net electric field at a point is the vector sum of fields due to individual charges.
- What do electric field lines represent?
- The direction of the field at each point, with density indicating relative strength.
- State Gauss's law.
- Electric flux through a closed surface equals the enclosed charge divided by epsilon-0.
- What is the electric field of an infinite uniformly charged plane?
- E = sigma/(2*epsilon-0), perpendicular to the plane, where sigma is surface charge density.
- What is the electric field outside a uniformly charged spherical shell?
- E = kQ/r^2, same as a point charge at the center.
- What is the electric field inside a uniformly charged spherical shell?
- E = 0 everywhere inside.
- What is the electric field of an infinite uniformly charged cylinder?
- E = lambda/(2*pi*epsilon-0*r) perpendicular to the axis, where lambda is linear charge density.
- Define electric potential.
- The work per unit positive charge required by an external agent to move a test charge from a reference point to a given point.
- What is the electric potential at distance r from a point charge q?
- V = kq/r
- Define equipotential surfaces.
- Surfaces on which the electric potential is constant at every point.
- What is the relationship between electric field and electric potential?
- E = -dV/dr, the electric field is the negative gradient of the potential.
- Define capacitance.
- The ratio of charge stored on one plate to the potential difference between the plates.