Potential Multiple Choice

In summary, the question is asking which charge, q or 2q, is at a higher potential when located a distance r and 2r in the +x direction from Q, respectively. The answer depends on the sign of Q and can be determined by calculating the potential at the origin using the equation V = (kq)/R and considering the impact of q and 2q on each other's potential.
  • #1
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Homework Statement


Charge Q is located at the (x,y) origin. q is a distance r in the +x direction from Q. 2q is a distance 2r in the +x direction from Q. Which of q or 2q is at a higher potential? q, 2q, or same.

The Attempt at a Solution


I am thinking that it would depend on Q. Q=0, then the higher potential is at q. But if it wasn't =0? The fact that 2q and q impact each other's potential also makes this problem difficult. Any thoughts?
 
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  • #2
We know that [tex]V=\frac{kq}{R}[/tex], correct? Do all potential calculations at the origin. For example, measure the potential due to q, and 2q at the origin where Q is located.

What do you get?
 
  • #3
Wouldn't it be the same for 2q and q? But if you mean add them together than V = kq(squared) / r. No?
 
  • #4
Does the question indicate whether Q is positive or negative?
 
  • #5
No, it does not.
 
  • #6
The sign of Q is the determining factor in this situation.
 
  • #7
Then what would be the answer for both cases?
 

What is potential multiple choice?

Potential multiple choice is a type of question format used in exams or assessments where the test-taker must choose the correct answer from a list of options.

How is potential multiple choice different from regular multiple choice?

In regular multiple choice questions, all of the options are possible answers, but in potential multiple choice, only some of the options are correct while others are intentionally incorrect. This adds an extra layer of difficulty for the test-taker.

Why do scientists use potential multiple choice questions?

Scientists use potential multiple choice questions to assess a test-taker's critical thinking and problem-solving skills. By intentionally including incorrect options, the test-taker must carefully analyze and evaluate each option to determine the correct answer.

How can one effectively prepare for potential multiple choice questions?

To effectively prepare for potential multiple choice questions, one should practice with similar question formats and focus on understanding the underlying concepts rather than just memorizing facts. It is also important to carefully read and analyze each option before selecting an answer.

What are some strategies for answering potential multiple choice questions?

Some strategies for answering potential multiple choice questions include eliminating obviously incorrect options, looking for clues or keywords in the question, and using the process of elimination to narrow down the choices. It is also helpful to read each option carefully and consider the context of the question before selecting an answer.

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