Chapter 10
Electromagnetism
Name the field source, the selected body and the directions of current or velocity before finding a force.
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Motion in a uniform electric field
Use charge sign and motion components to calculate force, acceleration and the complete exit state of an electron beam.
Magnetic sources and field patterns
Draw and interpret straight-wire, flat-coil and solenoid fields with a consistent viewpoint and current direction.
Force on a current-carrying conductor
Use current, external field and angle to determine force, and define magnetic flux density through the perpendicular case.
Measure magnetic flux density
Separate the wire force from the magnet reaction and infer field strength from a balance change or force-current gradient.
Magnetic force on a charged particle
Use charge sign, speed, angle and three-dimensional directions to find magnetic force and identify zero-force cases.
Circular motion in a magnetic field
Derive the magnetic orbit radius, track the velocity and inward force, and find the exit state at a field boundary.
Select a beam speed
Arrange opposing electric and magnetic forces and distinguish the selected speed from initial off-speed deflection.