Pulsating Direct Current!
Find the period of oscillating current in an electric circuit.
Crossed Cables!
Find the magnitude and direction of the total magnetic field at points A, B, C, and D.
Guiding a Proton!
If you want to use a uniform magnetic field to make the electron always move in a straight line in what direction should the magnetic field go?
Nucleus Moving in Circles!
What is the magnitude and direction of the magnetic force acting on the moving nucleus?
Six Loops Move in a Field!
Find the electromotive force that is generated on each of these loops.
Reaching the Other Plate!
Find the maximum \(h\) at which the proton barely reaches the other plate.
Torque on a Square Loop!
Calculate the net force and torque that the magnetic field exerts on the loop.
Proton in a Helical Path!
Calculate the radius of the resulting helical path.
Electron Looping!
Consider the orbiting electron as a current loop. What is the current?