Upgrade to remove ads
Week 2:Electric Fields and Potential
Terms in this set (20)
How does the electric field at a point in space relate to the electrostatic force felt by a charged particle at that point?
The field equals the force divided by the particle's charge
Two point charges are separated by a certain distance. How does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled?
The field does not change
A Van de Graaff generator uses electrostatics to do what?
The direction of the electric field of a negative charge in the vicinity of other charges is
inward for both positive and negative charges
Two particles with charges +2q and +q are separated by a distance r. The +2q particle has an electric field E at distance r and exerts a force F on the +q particle. What is the electric field of the +q particle at the same distance and what force does it exert on the +2q particle?
How can the direction of the electric field, created by an electron, be correctly described?
The field points towards the electron
How does the number of field lines leaving a positive charge change in a field diagram if the charge is quadrupled?
The number of lines increases by a factor of 4
A spherical conductor has a net positive charge. Describe how the charge is distributed around the sphere's surface.
The net positive charge is spread evenly around the sphere's surface
A spherical conductor has a net negative charge. What describes the direction of the electric field just outside the sphere's surface?
The field is perpendicular to the surface, pointing towards the sphere
Find the field due to a particle having a charge of 3.2×10−19C at a point 5cm away.
Two parallel plates have a uniform electric field between them. What is the relationship between the field strength and the voltage difference between the plates?
The field equals the voltage divided by the distance.
Two plates have a uniform 4V/m electric field between them. The voltage difference between the plates is 2V. The distance between the plates is then doubled, but the voltage is the same as before. What is the new field strength, in V/m?
Two charges, Q1 and Q2 are on a line 5 meters away from each other; Q2 is to the right. Point P is equidistant from each charge. Q1 is a positive charge and Q2 is a negative charge. What is the magnitude and direction of the electric field at point P?
k(Q1+Q2)/2.5 squared to the right
Two equal positive charges, Q1 and Q2, are placed 5.0 meters from each other in the same configuration as in the previous question. Point P is located exactly 2.5 meters from each charge. What is the magnitude and direction of the electric field at point P?
A test charge is placed near two other charges. How does the total force on the first charge relate to the individual forces from the two other charges?
Total force is the vector sum of the individual forces
The force responsible for holding an atom together is:
Which of the following is not a property of a conductor in electrostatic equilibrium?
The force on a charge near the conductor is zero
A sphere with a mass of 2.00kg and a net charge −8.00C is released from rest at the bottom of the electric field E. The sphere accelerates upward and travels 4.00 meters in 4.00 seconds. Find the magnitude of the electric field. Use g=10 m/s2.
A sphere of unknown mass with a net charge, Q is released from rest in a uniform electric field, E. After it travels a distance, d, it acquires a kinetic energy, K. Find the magnitude of the electric field in terms of K, Q, and d. [Hint: remember the Work/Energy theorem]. The effects of work done by gravity are negligible.
A sphere with a mass, m and a net charge, q is placed in a uniform electric field, E. The mass is tied to a string to keep it from floating up in the electric field. Derive an equation for the tension in the string.
THIS SET IS OFTEN IN FOLDERS WITH...
physics exam 1
Physics Chapter 23 Concept Coach
Physics 2 test 1
YOU MIGHT ALSO LIKE...
HW1 Help 2
physics exam 1 concept
Electricity Physics Quiz
OTHER SETS BY THIS CREATOR
HIST 225 Midterm Study Guide
Honors 300 Midterm
Mus 203 playlist exam 1
MUS 203 Exam #1
OTHER QUIZLET SETS
Business Law Test 1 Scenarios and Case Problems
Oral biology chapter 10
FAM 350 Exam 3
FCC 2016 Broadband Privacy Rules: