Physics Solutions

Chapter 21 The Electric Field 1: Discrete deputation Distributions
thoughtual Problems
1 Objects are placid of atoms which are composed of excited particles (protons and electrons); however, we rarely observe the effects of the electrostatic force. let off why we do not observe these effects. Determine the purpose The net heyday on large objects is always very close to zero. Hence the most obvious force is the gravitational force. 2 A carbon atom can induce a carbon ion if it has one or more of its electrons aloof during a process called ionization. What is the net charge on a carbon atom that has had two of its electrons removed? (a) +e, (b) e, (c) +2e, (d) 2e Determine the Concept If two electrons are removed from a carbon atom, it volition have a net positive charge of +2e. (c ) is correct. 3 You do a simple demonstration for your high inculcate physics teacher in which you claim to disprove degree centigrades law. You first run a rubber comb out through your dry hair, then use it to attract flyspeck neutral pieces of study on the desk. You then say ? blows law states that for thither to be electrostatic forces of fondness betwixt two objects, both objects need to be aerated. However, the piece was not charged.



So according to hundreds law, there should be no electrostatic forces of attraction between them, notwithstanding there clearly was.? You rest your case. (a) What is wrong with your assumptions? (b) Does attraction between the study and the comb require that the net charge on the comb be negative? Explain. Determine the Concept (a) Coulombs law is only valid for point particles. The paper bits cannot be modeled as point particles because the paper bits live on polarized. (b) No, the attraction does not depend on the sign of the charge on the comb. The induced charge on the paper that is at hand(predicate) to the comb is always opposite in sign to the charge on the comb, and thus the net force on the paper is always attractive. 4 You have a positively charged insulating rod and two...If you want to get a full essay, tell it on our website: Ordercustompaper.com



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