Are My Electric Potential Answers Correct for These 7 Cases?

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The discussion revolves around verifying the answers related to electric potential and field directions for seven different scenarios involving test charges. The user describes various cases with positive and negative charges and their movements in relation to electric fields, indicating whether the potential increases or decreases. Key points include the behavior of test charges moving towards or away from source charges and the corresponding changes in electric potential. The user seeks confirmation on the correctness of their interpretations and calculations. The thread highlights the importance of understanding electric fields and potentials in physics.
gazepdapi1
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I need you guys to check some of my answers for the following problem, which has 7 different cases. Each case has to be answered by stating the direction of the test charge with the electric field and whether the electric potantial decreases from point a to b. Below are two sample pictures of what I'm describing.

http://img256.imageshack.us/img256/6502/qqug4.jpg"

here are the different scenarios:

plus charge emitting a field line to the right, point a to b, where a is closser to the charge. test charge is moving towards the plus charge
-I said test charge goes against E, and P. increases

same E field, negative test charge moves away from the plus charge
-I said negative test charge moves along E, and P. decreases

same E field, negative test charge moves toward plus charge
-I said negative test charge moves against E, P. increases

now there is a negative charge emmiting a field line coming from the right toward itself. test charge moves away from the E field
-I said test charge moves against E, P. increases

same E field, test charge moves toward E field.
-I said test charge move along E, P. decreases

same E field, negative test charge moves away from the E filed.
-I said negative test charge goes against E, P. increases

same E field, negative test charge moves toward E field
-I said negative test charge goes along E, P. increases

I hope that's clear
thanks a lot guys
 
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what about +ve test charge moving away from the +ve source charge?
 
mjsd said:
what about +ve test charge moving away from the +ve source charge?

The professor used that as an example, so i don't need it.
good eye though
 
can anyone tell me if these are correct or not please?
 
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