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Static Charge
· Electrons have a Negative charge.
· It is electrons that move when objects become
charged
­ gaining electrons= negative charge
­ losing electrons = positive charge
· Opposite charges attract.
· Charge will not build up if there is a
conducting route to earth (the object is
earthed)…read more

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How does static charge build up?
Static charge can build up when
two insulating materials are rubbed
together, such as a plastic comb
moving through hair.
Friction between the materials
causes electrons to be transferred
from one material to the other:
One material ends up with more electrons,
so it now has an overall negative charge.
One material ends up with fewer electrons,
so it now has an overall positive charge.
* of 38 © Boardworks Ltd 2007…read more

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Static charge ­ true or false?
* of 38 © Boardworks Ltd 2007…read more

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Statics Phs 09 Jun
Electrons have been transferred onto the comb
Like charges repel each other…read more

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The charges on the comb and the paper are opposite and
opposite charges attract each other.…read more

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