This simple demonstration shows a strong magnet can cause current to flow in a coil of wire.
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The ion wind from the sharp tip of a charged conductor causes the conductor to move.
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You can show how a current carrying wire will create a magnetic field surrounding it.
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This one can be messy but it shows how like charges repel quite dramatically.
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This demonstration uses the Van de Graaff generator to show how like charges repel.
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