In this example, we find the work needed to create a dipole by bringing in two...
In this example, we find the work needed to create a dipole by bringing in two point charges of mass m = 0.005 kg ; and opposite charge Q = 22 nC, from infinity, to within a distance d=2nm of one another. Gravity should be ignored.
a) Find the potential energy between the two point charges when they are an infinite distance away from one another.
b) Find the electrostatic energy between the two charges when they are a distance d from one another.
c) Find the change in potential energy between the two charges as they are moved from infinity to the final position, a distance d = 2 nm apart.
d) The charges start out at rest and end at rest. Find the change in their kinetic energy.
e) Find the change in mechanical energy.
f) Using Wnc = ΔME, find the work done by you to bring them from infinity to the final position.
g) Is the work done by you equal to Wnc ? 1) Yes 2) No
*Please do you mind making sure its clear and explain shortly why certain equations/methods are used, cause i have had two questions answered and the answer wasnt methodically written out and both were incorrect*
Homework Answers
Here we apply electrostatic potential energy formula for point charges and work energy theorem.
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In this example, we find the work needed to create a dipole by
bringing in two...
WEEK 3, QUESTION 2 Which of the following is false about electric potential energy of two...
WEEK 3, QUESTION 2 Which of the following is false about electric potential energy of two charges? A) Electric potential energy is positive for alike charges and negative for opposite charges. B) Electric potential energy always decreases with the increasing distance between the charges. C) If charges were separated by distance x oo, the electric potential energy U0 D) Change in electric potential energy between two charges is equal to the work done by the electric field.
WEEK 3, QUESTION 2 Which of the following is false about electric potential energy of two...
WEEK 3, QUESTION 2 Which of the following is false about electric potential energy of two charges? A) Electric potential energy is positive for alike charges and negative for opposite charges. B) Electric potential energy always decreases with the increasing distance between the charges. C) If charges were separated by distance x-oo, the electric potential energy U0 D) Change in electric potential energy between two charges is equal to the work done by the electric field
please explain in steps. Thank you 8. Two OPPOSITELY charged particles at rest are separated by...
please explain in steps. Thank you
8. Two OPPOSITELY charged particles at rest are separated by a distance R and have a total electric potential energyU. One of the charges is at a fixed position, but the other is free to move. Because the charges are attracted towards one another, the charge that is free to move accelerates towards the one that is fixed. When distance between the charges is reduced to K , which of the following must ne...
Consider a system of three charges shown in (Figure 1). An object with charge q4 =...
Consider a system of three charges shown in (Figure 1). An
object with charge q4 = +7.0×10−9C is moved to position C
from infinity (not shown in the figure). q1 = q2
= q3 = +10.0×10−8C.
A) Determine the initial electric potential energy of the system
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Consider a system of three charges shown in (Figure 1).An object with charge q4 = +6.0×10−9C...
Consider a system of three charges shown in (Figure 1).An object
with charge q4 = +6.0×10−9C is moved to position C from infinity
(not shown in the figure). q1 = q2 = q3 = +10.0×10−8C. a.
Determine the initial electric potential energy of the system
consisting of all four charges. b.
Determine the final electric potential energy of the system
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a) In the picture below, the 3 charges Q1, Q2 and Q3 are located at positions...
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WEEK 3, QUESTION 2 Which of the following is false about electric potential energy of two charges? A) Electric potential energy is positive for alike charges and negative for opposite charges. B) Electric potential energy always decreases with the increasing distance between the charges. C) If charges were separated by distance x-oo, the electric potential energy U0 D) Change in electric potential energy between two charges is equal to the work done by the electric field
please explain in steps. Thank you
8. Two OPPOSITELY charged particles at rest are separated by a distance R and have a total electric potential energyU. One of the charges is at a fixed position, but the other is free to move. Because the charges are attracted towards one another, the charge that is free to move accelerates towards the one that is fixed. When distance between the charges is reduced to K , which of the following must ne...
Consider a system of three charges shown in (Figure 1). An
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A) Determine the initial electric potential energy of the system
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potential energy of the system consisting of all four charges. C)
Determine the work done on the system by moving the charge
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a) A point charge +q is placed at the origin. By explicitly calculating the relevant line integral, determine how much exter- nal work must be done to bring another point charge +q from infinity to the point r2- ay? Consider the difference between external work and work done by the force. {2] b) Both of these charges are held fixed and a third charge +q is now brought from infinity to position F3 a+ay. Re- peat the same type of...
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