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Tag Archives: Magnetism
Teaching electricity and magnetism is complicated by the challenge that the magnetic forces are perpendicular to the motion of the particles and currents. This requires a three-dimensional perspective which can introduce a variable of a “wrong” direction. To prevent errors, … Continue reading
A look at the forces acting on current carrying wires & charged particles in magnetic fields. Download the notes. Download the video.
Magnetism, Earth’s magnetic field, Magnetic fields, Drawing the magnetic fields, Strength of magnetic fields, Magnetic fields around wires, The right-hand grip rule, The solenoid. Download the notes. Download the videos.
Voltage across a moving rod, Induced current – opposes changing flux, Magnetic flux, Lenz’s law, Induced EMF, EMF calculations, EMF vs flux graphs, AC generator (alternator) Download the notes. Download the video. Links: http://www.electronics-tutorials.ws/accircuits/sinusoidal-waveform.html http://www.walter-fendt.de/ph14e/generator_e.htm
A look at the parts and rotation of a DC motor. Download the notes. Download the video.