The electric force between two charged particles becomes weaker with increasing distance. Suppose instead that the electric force were independent of distance. In this case, would a charged comb still cause a neutral insulator to become polarized as in Fig. 21.8? Why or why not? Would the neutral insulator still be attracted to the comb? Again, why or why not? 21.8 The charges within the molecules of an insulating material can shift slightly. As a result, a comb with eithersign of charge attracts a neutral insulator. By Newton's third law the neutral insulator exerts an equal-magnitudeattractive force on the comb.(a) A charged comb picking up unchargedpieces of plastic(b) How a negatively charged comb attracts aninsulator(c) How a positively charged comb attracts aninsulatorElectrons in cachmolecule of the neutralThis time, electrons ininsulator shift awayfrom the comb.the molecules shifttoward the comb .*Negativelycharged combPositivelycharged comb. so the(-) charges in eachAs a result, the(+) charges in eachmolecule are closer tomolecule are closer tothe comb than are the (-)the comb, and feel astronger force from it, thanthe (+) charges. Again, the netcharges and so feel a strongerforce from the comb. Thereforeforce is attractive.the net forse is altractive

The electric force between two charged particles becomes weaker with increasing distance. Suppose instead that the electric force were independent of distance. In this case, would a charged comb still cause a neutral insulator to become polarized as in Fig. 21.8? Why or why not? Would the neutral insulator still be attracted to the comb? Again, why or why not?

The electric force between two charged particles becomes weaker with increasing distance. Suppose instead that the electric force were independent of distance. In this case, would a charged comb still cause a neutral insulator to become polarized as in Fig. 21.8? Why or why not? Would the neutral insulator still be attracted to the comb? Again, why or why not?

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