Point charge - Assertion & Reason type problem

Click For Summary

Homework Help Overview

The discussion revolves around an Assertion & Reason type problem related to point charges in physics. Participants are analyzing the validity of assertions and their corresponding reasons, particularly focusing on the nature of point charges and the implications of the reasoning provided.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants express differing views on the correctness of the assertion and reason, with some suggesting that the reasoning may be flawed even if the assertion about point charges is generally accepted. Others question the structure of the propositions provided, noting that some lack completeness.

Discussion Status

The discussion is ongoing, with participants sharing their interpretations and seeking clarification on the problem's requirements. There is no explicit consensus yet, but various perspectives on the assertion and reasoning are being explored.

Contextual Notes

Some participants highlight confusion regarding the nature of the propositions, particularly the incomplete forms of the assertions presented in the problem. This has led to questions about how to evaluate the truth of the assertion and reason.

Jahnavi
Messages
848
Reaction score
102

Homework Statement


assertion.png
ChargeAR.jpg


Homework Equations

The Attempt at a Solution



These AR type problems are mostly tricky and debatable . To me, A is correct and R is wrong . Although electron is approximated to be a point particle , but I think if R is true , then A will be wrong .

I think c) is correct . I might be wrong .

I would like to know experts view on this .
 

Attachments

  • ChargeAR.jpg
    ChargeAR.jpg
    12.3 KB · Views: 654
  • assertion.png
    assertion.png
    49.3 KB · Views: 811
Last edited by a moderator:
Physics news on Phys.org
I'd go for c, but the form of the assertion is a bit unusual. The assertion is not "a point charge is impossible"; rather, it is in itself a line of reasoning, that "since matter..." etc. So if that reasoning is faulty, would we say A is false even though we may agree that a point charge is not possible?
 
  • Like
Likes   Reactions: Jahnavi
I am not sure I understand the question. Are we trying to pick out a correct proposition out of the 5 choices? (a) to (d) are not propositions at all. They contain only the "if" part, with no "then". The only complete proposition is (e).
 
Chandra Prayaga said:
I am not sure I understand the question. Are we trying to pick out a correct proposition out of the 5 choices? (a) to (d) are not propositions at all. They contain only the "if" part, with no "then". The only complete proposition is (e).
In the lower box, the A is an assertion, which may be true or false; the R is a supposed justification for the assertion. The R may be true or false in itself, and it might or might be reasonable to deduce A from R.
The task is to determine which combination of those possibilities applies, as listed in a to e.
 
  • Like
Likes   Reactions: Jahnavi

Similar threads

  • · Replies 10 ·
Replies
10
Views
1K
Replies
9
Views
2K
  • · Replies 8 ·
Replies
8
Views
6K
Replies
23
Views
5K
Replies
21
Views
2K
Replies
2
Views
2K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 23 ·
Replies
23
Views
2K
Replies
12
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K