Answered: Two small balls with a mass of 2 g each…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Two small balls with a mass of 2 g each are hanging on two separate strings 0.5 m (50 cm) long attached to a common point. They are given an identical negative charge and spread apart to a distance 6 cm from each other. What would happen if the charge on each ball is doubled?

Expert Solution

Step 1: Concept to be used:

Coulomb's law:

According to this law, the magnitude of the electric force acting between two charges $q_{1}$ and $q_{2}$ separated by a distance $r$ is given by the formula,

$F = k \frac{q_{1} q_{2}}{r^{2}}$

where $k$ is Coulomb's constant.

The direction of this force is along the line joining the charges. The force is repulsive if the sign of the charges is the same. The force is attractive if the sign of the charges is opposite.

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