Chapter Review Test1. A source of charges at a point is at the middle of two large metal plates 2 cm apart.One of the plates is maintained at 1200 V above the other plate. Find the potentialgradient at the source measured at right angles to the plates.2. Two metallic plates are 0.04 m apart and the potential difference between them is 50 V.Between the two equipotential surfaces, there is a potential difference of 2.5 V. Find thespacing in this part of the field between the two metal plates.3. An electron has a kinetic energy of 6.4 × 10-19 J. What is this energy in electron volts?4. Find the number of particles each carrying the charge of an electron that passes betweenthe terminals of a 12-V car battery when a 100-W headlight is on for one hour.5. Using a zero reference potential at infinity, determine the amount by which a pointcharge of 8 x 10-10 C alters the electric potential at a point 2 m away when the chargeis positive.6. Two parallel plates of a condenser are 5 mm apart. The potential difference betweenthem is 1200 V. (a) What is the potential gradient in the condenser? (b) What is theelectric force on a proton midway between the plates?7. Suppose two identical spheres are given charges of 4q and q respectively. If they areplaced in contact with one another and then separated, what charge is retained by eachsphere?8. What is meant by the potential energy of a system of point charges? How will youcalculate this potential energy?

Potential gradient is simply electric field at that point.

Chapter Review Test A source of charges at a point is at the middle of two large metal plates 2 cm apart. One of the plates is maintained at 1200 V above the other plate. Find the potential wodient at the source measured at right angles to the plates.

Chapter Review Test A source of charges at a point is at the middle of two large metal plates 2 cm apart. One of the plates is maintained at 1200 V above the other plate. Find the potential wodient at the source measured at right angles to the plates.

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

Chapter Review Test
1. A source of charges at a point is at the middle of two large metal plates 2 cm apart.
One of the plates is maintained at 1200 V above the other plate. Find the potential
gradient at the source measured at right angles to the plates.
2. Two metallic plates are 0.04 m apart and the potential difference between them is 50 V.
Between the two equipotential surfaces, there is a potential difference of 2.5 V. Find the
spacing in this part of the field between the two metal plates.
3. An electron has a kinetic energy of 6.4 × 10-19 J. What is this energy in electron volts?
4. Find the number of particles each carrying the charge of an electron that passes between
the terminals of a 12-V car battery when a 100-W headlight is on for one hour.
5. Using a zero reference potential at infinity, determine the amount by which a point
charge of 8 x 10-10 C alters the electric potential at a point 2 m away when the charge
is positive.
6. Two parallel plates of a condenser are 5 mm apart. The potential difference between
them is 1200 V. (a) What is the potential gradient in the condenser? (b) What is the
electric force on a proton midway between the plates?
7. Suppose two identical spheres are given charges of 4q and q respectively. If they are
placed in contact with one another and then separated, what charge is retained by each
sphere?
8. What is meant by the potential energy of a system of point charges? How will you
calculate this potential energy?

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