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Kapitel 28

Magnetic Forces and Fields

Magnetismus
Magnetismus
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows ...
Magnetfelder
Magnetfelder
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on ...
Magnetische Feldlinien
Magnetische Feldlinien
The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the ...
Magnetischer Fluss
Magnetischer Fluss
The magnetic flux measures the number of magnetic field lines passing through a given surface area. The SI unit for magnetic flux is the weber (Wb). ...
Bewegung eines geladenen Teilchens in einem Magnetfeld
Bewegung eines geladenen Teilchens in einem Magnetfeld
A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move ...
Magnetische Kraft
Magnetische Kraft
In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a ...
Magnetische Kraft auf einen stromdurchflossenen Leiter
Magnetische Kraft auf einen stromdurchflossenen Leiter
Moving charges experience a force in a magnetic field. Since the magnetic fields produced by moving charges are proportional to the current, a conductor ...
Magnetkraft auf stromdurchflossene Drähte: Beispiel
Magnetkraft auf stromdurchflossene Drähte: Beispiel
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts ...
Kraft auf eine Stromschleife in einem Magnetfeld
Kraft auf eine Stromschleife in einem Magnetfeld
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical ...
Drehmoment an einer Stromschleife in einem Magnetfeld
Drehmoment an einer Stromschleife in einem Magnetfeld
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between ...
Der Hall-Effekt
Der Hall-Effekt
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting ...
Thomsons e/m Experiment
Thomsons e/m Experiment
In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform ...
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