Homework Answers
(10 points) a) Two through the box? charges Qi and Q2 are inside a closed cubical...
(10 points) a) Two through the box? charges Qi and Q2 are inside a closed cubical box of side a. What is the net outward flux iv. (Qi + Q)/(4a) b) As two positive charges are brought closer together i. the repulsive force between them will decrease in magnitude ii. the repulsive force between them will increase in magnitude ii. the attractive force between them wil decrease in magnitude iv. the attractive force between them will increase in magnitude v....
Two charges are brought together until they are 100cm apart, causing the electric force between them...
Two charges are brought together until they are 100cm apart, causing the electric force between them to increase by a factor of exactly 5. What was their initial separation distance?
Can one find charges in absolute vacuum? O No O Yes, because light can travel in...
Can one find charges in absolute vacuum? O No O Yes, because light can travel in vacuum O It depends. Question 2 1 pts When two point electric charges are brought closer, the force between them becomes O Stronger O depends on the signs of the two charges. O weaker D Question 3 1 pts rank the force strength between two objects in the following situations. In each case the charge is Q for each object, the distance from center...
1- For a uniform electric field, how is the electric potential energy similar to the gravitational...
1- For a uniform electric field, how is the electric potential energy similar to the gravitational potential energy in a uniform gravitational? 2-If a positive charge and a negative charge moving the same way in an electric field have the same change in electric potential energy? 3-For a positive charge moving in an electric field, which direction of motion will cause the electric potential energy to increase? Decrease? Stay constant? 4-How would the answers to the previous question be different...
Make a qualitative sketch of the electric field lines produced by two equal positive charges, +q,...
Make a qualitative sketch of the electric field lines produced by two equal positive charges, +q, that are separated by a distance d. How does your sketch change if one of the charges is instead negative? How does your sketch change if one of the charges is instead +2q? Gaussian surface 1 has twice the surface area of Gaussian surface 2. Both surfaces enclose the same charge, +Q. Is the electric flux through surface 1 greater than, less than, or...
Date 0913118 1. Two balls with charges+Q and +4Q are fixed at a separation place another...
Date 0913118 1. Two balls with charges+Q and +4Q are fixed at a separation place another charged ball Qo on the line between the two will be zero? a) Yes, but only if Qo is positive, distance of 3R. Is it possible to the two charges such that the net force on Q Yes, but only if Qo is negative Yes, independent of the sign (or value) of Q d) No, the net force can never be zero. 2. Two...
Problem 1 (15 pts). You have seen in lecture 2 that there are similarities between the...
Problem 1 (15 pts). You have seen in lecture 2 that there are similarities between the electric force and the gravitational force. Which of the following statements about them is correct (a) The gravitational force is much stronger. (b) Both the electric force and the gravitational force are always attractive. (c) Both the electric force and the gravitational force act only on charged particles. (d) The electric force is generally much stronger than the gravitational force and can be either...
Coulomb’s Law Two protons are separated by a distance of 3.00 x 10^-10 meters and fixed...
Coulomb’s Law
Two protons are separated by a distance of 3.00 x 10^-10 meters
and fixed in place. a) What is the magnitude of the repulsive
electric force between the protons? b) What is the magnitude of the
attractive gravitational force between the protons? c) Is there any
value of the distance between the protons (besides infinity) for
which the gravitational force is equal to the electric force? If
yes, what is the distance. If no, explain why. d) Assume...
oulomb's law allows us to find the force between two point charges. Three point charges are...
oulomb's law allows us to find the force between two point charges. Three point charges are held fixed in place as shown in Figure 2. tQ tq -0 Figure 2 onsider the following comment about this situation: "There will be zero net electric force on the charge in the niddle due to the other charges. Using Coulomb's law, the force due to the +Q charge is positive, and the force due o the -Q charge is negative. The fores cancel...
Please show all work and steps! 4. Two charges, +3Q and -Q, are separated by 4...
Please show all work and steps!
4. Two charges, +3Q and -Q, are separated by 4 cm. Is there a point along the Region I Region I1 Region III line passing through them (and a finite distance from the charges) where the net electric field is zero? If so, where? How about any location that is not collinear with the charges. +30 -0
(10 points) a) Two through the box? charges Qi and Q2 are inside a closed cubical box of side a. What is the net outward flux iv. (Qi + Q)/(4a) b) As two positive charges are brought closer together i. the repulsive force between them will decrease in magnitude ii. the repulsive force between them will increase in magnitude ii. the attractive force between them wil decrease in magnitude iv. the attractive force between them will increase in magnitude v....
Can one find charges in absolute vacuum? O No O Yes, because light can travel in vacuum O It depends. Question 2 1 pts When two point electric charges are brought closer, the force between them becomes O Stronger O depends on the signs of the two charges. O weaker D Question 3 1 pts rank the force strength between two objects in the following situations. In each case the charge is Q for each object, the distance from center...
Make a qualitative sketch of the electric field lines produced by two equal positive charges, +q, that are separated by a distance d. How does your sketch change if one of the charges is instead negative? How does your sketch change if one of the charges is instead +2q? Gaussian surface 1 has twice the surface area of Gaussian surface 2. Both surfaces enclose the same charge, +Q. Is the electric flux through surface 1 greater than, less than, or...
Date 0913118 1. Two balls with charges+Q and +4Q are fixed at a separation place another charged ball Qo on the line between the two will be zero? a) Yes, but only if Qo is positive, distance of 3R. Is it possible to the two charges such that the net force on Q Yes, but only if Qo is negative Yes, independent of the sign (or value) of Q d) No, the net force can never be zero. 2. Two...
Problem 1 (15 pts). You have seen in lecture 2 that there are similarities between the electric force and the gravitational force. Which of the following statements about them is correct (a) The gravitational force is much stronger. (b) Both the electric force and the gravitational force are always attractive. (c) Both the electric force and the gravitational force act only on charged particles. (d) The electric force is generally much stronger than the gravitational force and can be either...
Coulomb’s Law
Two protons are separated by a distance of 3.00 x 10^-10 meters
and fixed in place. a) What is the magnitude of the repulsive
electric force between the protons? b) What is the magnitude of the
attractive gravitational force between the protons? c) Is there any
value of the distance between the protons (besides infinity) for
which the gravitational force is equal to the electric force? If
yes, what is the distance. If no, explain why. d) Assume...
oulomb's law allows us to find the force between two point charges. Three point charges are held fixed in place as shown in Figure 2. tQ tq -0 Figure 2 onsider the following comment about this situation: "There will be zero net electric force on the charge in the niddle due to the other charges. Using Coulomb's law, the force due to the +Q charge is positive, and the force due o the -Q charge is negative. The fores cancel...
Please show all work and steps!
4. Two charges, +3Q and -Q, are separated by 4 cm. Is there a point along the Region I Region I1 Region III line passing through them (and a finite distance from the charges) where the net electric field is zero? If so, where? How about any location that is not collinear with the charges. +30 -0
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