Electricity
Circuits
Magnetism
E&M
Culbreth Lore
200
The amount of a field going through an area.
Flux
200
The combination of conservation of charge and conservation of energy that allows for the analysis of circuits by looking at loops and junctions.
Kirchoff's Laws
200
The direction of the magnetic force on a positron if the positron is moving north and the magnetic field is directed upward.
East
200
Maxwell's equations relate changing magnetic and electric fields which create this physical phenomenon.
Light
200
Where Dr. Culbreth got his undergrad degree
Franklin & Marhsall College
400
The electric flux through a continuous surface is equal to the charge enclosed divided by the permittivity of free space.
Gauss's Law
400
The sum of the current entering a junction is equal to the sum of the current leaving the junction.
The junction rule.
400
The magnetic field strength inside of a solenoid.
B = mu0 n I
400
When a circuit is in the steady state, inductors act in this manner.
A bare wire.
400
Dr. Culbreth's favorite Pokemon
Tyranitar
600
The relationship between the electric field and electric potential with spherical symmetry
V = - integral of Edr or E = -dV/dr
600
The equivalent resistance for the following circuit
26 Ohms
600
The radius of the circle created by a charged particle moving in a magnetic field.
r = mv / qB
600
The relationship between the magnitudes of the magnetic and electric fields for a charged particle that is moving in a straight line perpendicular to both fields.
E = vB
600
Dr. Culbreth's favorite anime
Kino's Journey
800
Planar symmetry, infinite sheets of charge, combinations of infinite sheets of charge, oppositely charged plates, linearly charged wires, spherically symmetric charge distributions on spheres or spherical shells of charge.
Analytically solvable Gauss's Law geometries
800
The reading on the voltmeter for the below circuit the instant the switch is closed if each resistor has resistance 10 ohms and the battery supplies 5V.
1V
800
The magnitude and direction of the torque on the loop in the following image given that the axis shown is the z axis, the magnetic field strength is B, each side of the square loop has length L, and the current through the loop is I.
torque = IL2B in the -z direction
800
The equation for the emf induced in a solenoid by a changing magnetic flux through the solenoid.
emf = -N d(fluxb) / dt
800
The 3 clubs Dr. Culbreth is the faculty advisor for
Nerd Club, Models & Miniatures, Physics Club
1000
The electric field at point p due to the disk of charge with uniform charge density shown below in the limit as R >> x
E = sigma/(2 epsilon0)
1000
The definition of current in a conductor is based on these 4 quantities.
Number of charge carriers, charge of electron, the cross sectional area, and the drift velocity.
1000
The mathematical definition for the force due to a uniform magnetic field acting on a current carrying conductor.
FM = integral (I dl x B)
1000
The equation for maximum current through an inductor in an Inductor - Capacitor circuit.
I = V / sqrt(LC)
1000
The name of all 7 of Dr. Culbreth's cats
Roxy, Cinder, Maija, Aspen, Mojave, Nox Harbinger of Darkness, Dr. Lumos Spritzer PhD.