1)An electron moved from point A to point B along an equipotential surface.
a)the eclectron performs work in moving from point A to point B
b)Work is required to move the electron from point A to point B
c)Work is both required and performed in moving the electron from point A to point B
d)no work is required to move the electron from point A to point B
Isn't the answer d) because the electron is moving along the surface?
2)A proton is moved from point A to point B along an equipotential surface.
a)the proton's potential energy increases as it moves from point A to point B
b)the proton's potential energy decreases as it moves from point A to point B
c)the proton's potential energy stays constant as it moves from point A to point B
c) since there's no work involved (W=change in PE)
3)2)A neutron is moved from point A to point B along an equipotential surface.
a)the neutron's potential energy increases as it moves from point A to point B
b)the neutron's potential energy decreases as it moves from point A to point B
c)the force exerted on the neutron changes as it moves from point A to point B
d)none of the above
I think it's either d) or c) but i'm not sure.
1 and 2 right on
in 3, there is no force on the neutron, therefore none of the above.
The neutron takes no work, nor PE is gained/lost in an electric field, as there is no force.
On the first two, you are correct.
For question 1, the correct answer is d) no work is required to move the electron from point A to point B along an equipotential surface. This is because equipotential surfaces represent a constant potential, and work is only done when there is a change in potential. Moving along an equipotential surface means there is no change in potential, so no work is required.
For question 2, the correct answer is c) the proton's potential energy stays constant as it moves from point A to point B along an equipotential surface. Just like the previous question, moving along an equipotential surface means there is no change in potential, so the potential energy remains constant.
For question 3, the correct answer is c) the force exerted on the neutron stays constant as it moves from point A to point B along an equipotential surface. Since equipotential surfaces represent a constant potential, the force exerted on a particle is perpendicular to the equipotential surface and does not change as the neutron moves along it.
1) The correct answer is d) no work is required to move the electron from point A to point B along an equipotential surface.
Explanation: An equipotential surface is a surface where the electric potential is the same at every point. Since the electron is moving along an equipotential surface, there is no change in electric potential, and therefore no work is required to move the electron from point A to point B.
2) The correct answer is c) the proton's potential energy stays constant as it moves from point A to point B along an equipotential surface.
Explanation: Potential energy is related to the work done in moving an object against a force. Along an equipotential surface, there is no electric field and hence no force acting on the proton. Therefore, no work is done and the potential energy of the proton remains constant.
3) The correct answer is d) none of the above.
Explanation: Along an equipotential surface, the potential energy does not change. However, the force exerted on the neutron can change as it moves from point A to point B. This is because the force experienced by a charged particle depends on the electric field, which is not necessarily zero along an equipotential surface. Therefore, option c) is incorrect. Additionally, since the potential energy does not change, neither option a) nor b) is correct. The correct answer is d) none of the above.