5. The picture on the left below illustrates a positive charge near an electroscope. The terminal is then touched by the finger. The picture on the right illustrates the end result after the finger and rod are removed as in step 7. Label the charges inside the terminal and on the leaves appropriately +++++

5. The picture on the left below illustrates a positive charge near an electroscope. The terminal is then touched by the finger. The picture on the right illustrates the end result after the finger and rod are removed as in step 7. Label the charges inside the terminal and on the leaves appropriately +++++

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter23: Electric Forces

Section23.3: A Qualitative Look At The Electrostatic Force

Problem 23.3CE: When wool is rubbed against amber, the wool becomes positively charged and the amber becomes...

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Similar questions

When a glass rod is rubbed with silk, it becomes negativeyet both attract dust. Does the dust have a third type of charge that is attracted to both positive and negative? Explain.
If you have charged an electroscope by contact with a positively charged object, describe how you could use it to determine the charge of other objects. Specifically, what would the leaves of the electroscope do if other charged objects were brought near its knob?
Suppose someone tells you that rubbing quartz with cotton cloth produces a third kind of charge on the quartz. Describe what you might do to test this claim.
A large charge +Q and a small charge q are a short distance apart. How do the electric forces on each charge compare? Is this comparison described by another physical law? (Hint: See Chapter 3.4.)
Why do most objects tend to contain nearly equal numbers of positive and negative charges?
A positively charged It'd attracts a small piece of cork. (a) Can we conclude that the cork is negatively charged? (b) The rod repels another small piece of cork. Can we conclude that this piece is positively charged?
When wool is rubbed against amber, the wool becomes positively charged and the amber becomes negatively charged. If you rub a glass rod with a silk cloth and an amber rod with a wool cloth, are the rods attracted to or repelled by each other? Are the cloths attracted to or repelled by each other? Is the silk cloth attracted to the amber rod or repelled by the amber rod? Is the wool cloth attracted to the glass rod or repelled by the glass rod? Explain your answers.
(a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece’s weight. Assuming equal point charges (only an approximation), calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a mg piece of tape held 1.00 cm above another. (b) Discuss whether the magnitude of this charge is consistent with what is typical of static electricity.
Compare and contrast the Coulomb force field and the electric field. To do this, make a list of five properties for the Coulomb force field analogous to the five properties listed for electric field lines. Compare each item in your list of Coulomb force field properties with those of the electric field—are they the same or different? (For example, electric field lines cannot cross. Is the same true for Coulomb field lines?)
Bare free charges do not remain stationary when close together. To illustrate this, calculate the acceleration of two isolated protons separated by 2.00 nm (a typical distance between gas atoms). Explicitly show how you follow the steps in the Problem-Solving Strategy for electrostatics.
Point charges of 5.00 C and 3.00/C are placed 0.250 m apart. (a) Where can a third charge be placed so that the net force on it is zero? (b) What if both charges are positive?
Would the self-created electric field at the end of a pointed conductor, such as a lightning rod, remove positive or negative charge from the conductor? Would the same sign charge be removed from a neutral pointed conductor by the application of a similar externally created electric field? (The answers to both questions have implications for charge transfer utilizing points.)