Change p.d., d, velocity, charge on particle see path
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Change p.d., d, velocity, charge on particle see path
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See electrons in a field, change p.d.
Change direction of current, see field lines, compass
http://www.walter-fendt.de/html5/phen/magneticfieldwire_en.htm
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Change charge, see fields, forces
http://mw.concord.org/nextgen/#interactives/physics/electrostatics-physics/charge-intensity-physics
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See charges on rods and can
http://www.physicsclassroom.com/Physics-Interactives/Static-Electricity/Aluminum-Can-Polarization
Change charges, see electric fields forming
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See epe around different charges
See pattern of field lines
http://physics.bu.edu/~duffy/HTML5/EField.html
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