2. What happens when a positively charged rod is brought near a neutral plastic ball? a. protons on the ball are attracted to the positive rod and move to the near side of the ball b. the protons on the ball repelled by the positive rod and move to the far side of the ball c. electrons in the ball are repelled to the far side of the plastic ball d. electrons in the ball are attracted to the near side of the ball 3. A neutral object a. is attracted to negatively charged objects only b. is attracted to positively charged objects only c. is attracted to either a negatively or a positively charged object d. is repelled by a negatively or a positively charged object 4. How can object becomes positively charged? a. Protons are added to it b. It loses electrons c. The number of electrons is increased d Neutrons are removed from it

2. What happens when a positively charged rod is brought near a neutral plastic ball? a. protons on the ball are attracted to the positive rod and move to the near side of the ball b. the protons on the ball repelled by the positive rod and move to the far side of the ball c. electrons in the ball are repelled to the far side of the plastic ball d. electrons in the ball are attracted to the near side of the ball 3. A neutral object a. is attracted to negatively charged objects only b. is attracted to positively charged objects only c. is attracted to either a negatively or a positively charged object d. is repelled by a negatively or a positively charged object 4. How can object becomes positively charged? a. Protons are added to it b. It loses electrons c. The number of electrons is increased d Neutrons are removed from it

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 53PE: A simple and common technique for accelerating electrons is shown in Figure 18.55, where there is a...

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Similar questions

Consider two electric dipoles in empty space. Each dipole has zero net charge. (a) Does an electric force exist between the dipoles; that is, can two objects with zero net charge exert electric forces on each other? (b) If so, is the force one of attraction or of repulsion?
A simple and common technique for accelerating electrons is shown in Figure 18.55, where there is a uniform electric field between two plates. Electrons are released, usually from a hot filament, near the negative plate, and there is a small hole in the positive plate that allows the electrons to continue moving. (a) Calculate the acceleration of the electorn if the field strength is 2.50104 N/C. (b) Explain why the electron will not be pulled back to the positive plate once it moves through the hole.
Integrated Concepts An electron has an initial velocity of 5.00106m/s in a uniform 2.00105N/C strength electric field. the field accelerates the electron in the direction opposite to its initial velocity. (a) What is the direction of the electric field? (b) How far does the electron travel before coming to rest? (c) How long does it take the electron to come to rest? (d) What is the electron’s velocity when it returns to its starting point?
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