Electricity & Magnetism. Universal Forces Throughout all galaxies far, far away………. Remember, FORCES exert a push or pull on objects and can do WORK They can act over a distance without touching Gravitational force – a weak force due to mass
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# of PROTONS = # of ELECTRONS
# of PROTONS > # of ELECTRONS
# of PROTONS < # of ELECTRONS
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+
+
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NEGATIVE
POSITIVE


and

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and
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+
and
Work is done as electrons flow through a circuit .
6,250,000,000,000,000,000 electrons
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