Consider the group of three +2.4 nC point charges shown in the figure. What is the work done by the field in bringing a -4.8 nC charge to the empty corner of the rectangle? a. b. C. d. e. 2.2 × 10-5 J 8.1 x 10-6 J Correct ansmek 7.6 × 10-6 J 4.6 × 10-6 J 4.0 × 10-6 J 21 X6 4.0 cm 3.0 cm CVT

Consider the group of three +2.4 nC point charges shown in the figure. What is the work done by the field in bringing a -4.8 nC charge to the empty corner of the rectangle? a. b. C. d. e. 2.2 × 10-5 J 8.1 x 10-6 J Correct ansmek 7.6 × 10-6 J 4.6 × 10-6 J 4.0 × 10-6 J 21 X6 4.0 cm 3.0 cm CVT

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 18PE: (a) By what factor must you change the distance between two point charges to change the force...

See similar textbooks

Similar questions

To form a helium atom, an alpha particle that contains two protons and two neutrons is fixed at one location, and two electrons are brought in from far away, one at a time. The first electron is placed at 0.6001010 m from the alpha particle and held there while the second electron is brought to 0.6001010 m from the alpha particle on the other side from the first electron. See die final configuration below, (a) How much work is done in each step? (b) What is the electrostatic energy of die alpha particle and two electrons in the final configuration?
An amoeba has 1.001016protons and a net charge of 0.300 pC. (a) How many fewer electrons are there than protons? (b) If you paired them up, what fraction of the protons would have no electrons?
(a) By what factor must you change the distance between two point charges to change the force between them by a factor of 10? (b) Explain how the distance can either increase or decrease by this factor and still cause a factor of 10 change in the force
A simple and common technique for accelerating electrons is shown in Figure 7.46, 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 electron 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. Figure 7.46 Parallel conducting plates with opposite charges on them create a relatively uniform electric field used to accelerate electrons to the right. Those that go through the hole can be used to make a TV or computer screen glow or to produce X- rays.
Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many electrons are needed to folm a chalge of 2.00 nC? (b) How many elections must be removed from a neutral object to leave a net chalge of 0.500 C ?
A proton and an alpha particle (charge = 2e, mass = 6.64 1027 kg) are initially at rest, separated by 4.00 1015 m. (a) If they are both released simultaneously, explain why you cant find their velocities at infinity using only conservation of energy. (b) What other conservation law can be applied in this case? (c) Find the speeds of the proton and alpha particle, respectively, at infinity.
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.
Three charges are situated at corners of a rectangle as in Figure P16.13. How much work must an external agent do to move the 8.00-C charge to infinity? Figure P16.13 Problems 13 and 14.
Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many electrons are needed to form a charge of 2.00 nC (b) How many electrons must be removed from a neutral object to leave a net charge of 0.500 C ?
A lightning bolt strikes a tree, moving 20.0 C of charge through a potential difference of 1.00102 MV. (a) What energy was dissipated? (b) What mass of water could be raised from 15 °C to the boiling point and then boiled by this energy? (c) Discuss the damage that could be caused to the tree by die expansion of the boiling steam.
There are very large numbers of charged particles in most objects. Why, then, don't most objects exhibit static electricity?
(a) Would life be different if the electron were positively charged and the proton were negatively charged? (b) Does the choice of signs have any bearing on physical and chemical interactions? Explain your answers.