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negative
when electrons are scraped from hair by brushing, the hair's net charge is
(4e)(6e)/d²
two charges q1 = +4e and q2 = +6e separated by distance d exert force proportional to
four times
doubling distance between charges changes the force to
aluminum
Which is a typical conductor?
charge in an isolated system is conserved; electrons are transferred but not created or destroyed
Which of the following states conservation of charge correctly?
superconductor
A material with zero electrical resistance so current can flow indefinitely is called a
Bubringing a charged object near a conductor to cause charge redistribution without contact.
Charging by induction involves