1 / 12

Review

Review. Charges have _________________________ associated with their position in an ____________________________ Charges that are moving naturally in an ____________________, lose / gain _______________________________ _____________________ characterizes the charge

angelica-saunders
Download Presentation

Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Review Charges have _________________________ associated with their position in an ____________________________ Charges that are moving naturally in an ____________________, lose / gain _______________________________ _____________________ characterizes the charge Ratio of __________________ per charge is called _____________________ Ratio of ___________________ per charge is called __________________________________________________ Positive charge naturally moves through a _____________________________ Negative charge naturally moves through a ____________________________

  2. Unit Play

  3. Potential in EF of a point charge White board practice: + 5.0 C 2.0 m A B 1.0 m Find the magnitude of the field at point A and at point B. Potential energy of a +2.0nC charge at each point (refer to the analogy with PEg) Find the change of EPE as the charge moves

  4. Potential in EF of a point charge White board practice: + 5.0 C 2.0 m A B 1.0 m Determine potential difference between the two points. Make a conclusion about the potential (magnitude) as the distance to the charge increases / decreases. As you get closer to the positive charge, V is ______________________ As you move away from the positive charge, V is ___________________

  5. Potential in EF of a point charge White board practice: - 5.0 C 2.0 m A B 1.0 m Find the magnitude of the field at point A and at point B. Find the change of EPE for a +2nC charge as it moves:

  6. Potential in EF of a point charge White board practice: - 5.0 C 2.0 m A B 1.0 m Determine potential difference between the two points. Make a conclusion about the potential (magnitude) as the distance to the charge increases / decreases. As you get closer to the positive charge, V is ______________________ As you move away from the positive charge, V is ___________________

  7. Deriving the formula for potential near a point charge Potential around a positive charge is _________________ Potential around a negative charge is ________________

  8. Potential is a scalar! 2.0 m Find the potential midway between the two charges: +2.0 nC and – 4.0 nC -2.0 nC and +4.0 nC -6.0 nC and +6.0nC

  9. Midpoint problems revisited 2.0 m Is there a net force on the point between the two charges? Is there a net field between the two charges? Is there a net potential between the two charges?

  10. Midpoint problems revisited 2.0 m If you know the net field between the charges, you can predict _________________________________________________________________ If you know the net potential between the charges, you can predict _________________________________________________________________

  11. Zero V vs. ES equilibrium What can you say about the two charges if you know that Vnet = 0 at midpoint? In that case, what can you say about the net field? What will happen to a ‘stray’ charge if it ends up at that point?

  12. Find the point where Enet and Vnet are 0 2.0 m Charges: +1.0 nC and – 4.0 nC

More Related