Regarding learning from Griffiths

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    Electro static Griffiths
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Discussion Overview

The discussion revolves around the challenges faced by an undergraduate student transitioning from introductory physics to Griffiths' "Introduction to Electrodynamics." Participants explore the necessary mathematical background, particularly in vector analysis, to effectively engage with the material. The conversation includes suggestions for supplementary resources and emphasizes the importance of problem-solving in mastering the concepts.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Homework-related

Main Points Raised

  • One participant expresses a desire to shift from Resnik's book to Griffiths but feels unprepared mathematically, particularly regarding vector analysis.
  • Suggestions include completing Resnik and Halliday before moving on to Griffiths, with multiple participants reiterating this advice.
  • Some participants recommend studying vector calculus from resources like Thomas or Schaum's to build the necessary mathematical foundation.
  • Another participant emphasizes the importance of solving numerous problems to master the material, citing a common student refrain about understanding concepts but struggling with problem-solving.
  • There is a suggestion to learn vector calculus concurrently with physics to enhance understanding, along with a specific example of evaluating flux due to a point charge.
  • One participant mentions that familiarity with the first chapter of Griffiths may suffice if the student solves more problems related to vectors.
  • Concerns are raised about jumping into intermediate physics without a solid grounding in introductory material and the requisite math skills.

Areas of Agreement / Disagreement

Participants generally agree on the importance of completing foundational coursework and solving problems, but there are varying opinions on the best approach to prepare mathematically for Griffiths. Some advocate for additional resources while others emphasize the need for a strong grasp of introductory physics before advancing.

Contextual Notes

Participants express uncertainty about the adequacy of their mathematical preparation and the potential challenges of studying Griffiths without a solid understanding of calculus and vector analysis. There are references to specific resources and methods, but no consensus on a single best approach is reached.

rudransh verma
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I am a undergraduate student and have done some studying from Resnik book (principles of physics). I have also got Feynman lectures vol1 which I am planning to study with Resnik. I think it will give me a solid grasp on theory. I am getting bored now after doing some chapters from Resnik(coulombs law, electric field, gauss law, motion in 1D and 2D and 3D).

I am thinking to jump to some other book to go in detail in say electrostatics to refresh my boring routine. So I have picked up introduction to electrodynamics in which 2nd chapter is electrostatics. But I face problem with math. I don't know anything about vector analysis except vector algebra. How should I now prepare myself mathematically to understand the electrostatics part of griffiths.

How about getting a mathematical methods for physics and engineering by riley, Hobson, Bence where I can learn stuff like divergence, curl, del operator, gradient, line, surface, volume integral used in this chapter.
Vector analysis chapter is given in this griffiths book but not in much detail. I also have vector analysis by schaum's.
 
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rudransh verma said:
How should I now prepare myself mathematically to understand the electrostatics part of griffiths.
1. Finish Resnick and Halliday.
2. Worth through a book on vector calc, e.g. Thomas
 
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Vanadium 50 said:
Worth through a book on vector calc, e.g. Thomas
I have vector analysis by schaums. Is it worth it?
 
1. Finish Resnick and Halliday.
 
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Vanadium 50 said:
1. Finish Resnick and Halliday.
@rudransh verma: This is good advice that bears repeating. (Again.)

Also: Solve as many problems as you can.
 
Doc Al said:
@rudransh verma: This is good advice that bears repeating. (Again.)

Also: Solve as many problems as you can.
Getting boring 🤢
 
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rudransh verma said:
Getting boring 🤢
Here's an excerpt from a reply I posted in another thread (https://www.physicsforums.com/threa...eshman-year-of-physics-at-university.1008318/). It is relevant to you as well:

"What I've gathered from reading your post is this: You are enamored of the grand concepts of physics, but you don't have the patience, discipline, and drive to work through the fundamentals. Physics is like many other fields: There's the fun stuff, and there's the not-so-fun stuff (what is fun and what is not-so-fun depends on the individual). But to succeed at the fun stuff, you also need to succeed at the not-so-fun stuff."

Jumping into intermediate level physics without a good grounding in introductory level physics (and the requisite math) is a really, really bad idea. If you continue down this path, you'll soon be posting, "I'm bored with Griffiths, so I'm thinking of taking the leap to Jackson. But I face problems with the math ..."
 
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CrysPhys said:
Here's an excerpt from a reply I posted in another thread (https://www.physicsforums.com/threa...eshman-year-of-physics-at-university.1008318/). It is relevant to you as well:

"What I've gathered from reading your post is this: You are enamored of the grand concepts of physics, but you don't have the patience, discipline, and drive to work through the fundamentals. Physics is like many other fields: There's the fun stuff, and there's the not-so-fun stuff (what is fun and what is not-so-fun depends on the individual). But to succeed at the fun stuff, you also need to succeed at the not-so-fun stuff."

Jumping into intermediate level physics without a good grounding in introductory level physics (and the requisite math) is a really, really bad idea. If you continue down this path, you'll soon be posting, "I'm bored with Griffiths, so I'm thinking of taking the leap to Jackson. But I face problems with the math ..."
Seems reasonable. God help me
 
My college physics 101 professor had a sign on his office wall, with what I assume was a refrain he'd heard way too many times: "I really understand the material. I just can't do the problems." (And years later I heard it myself from my own students.)

This is why I place so much emphasis on solving as many problems as you can stomach in as many ways as you can. Especially for the basics, that's the only way to really master the material.
 
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Do you already have a year of calculus under your belt? If so, you might want to start learning vector calculus concurrently with the physics. Then you could try to make up more difficult versions of the problems in Halliday and Resnick and solve them in gory mathematical detail. For example, evaluate the flux due to a point charge where the Gaussian surface is a cube. (It'll give you a better appreciation of symmetry.)
 
  • #11
When I learned Griffiths's textbook, I found that the first chapter is sufficient. Maybe you need to solve more problems to get familiar with vectors? :wink:
 
  • #12
If your single variable calculus is solid (You have calc BC under your belt or equivalent):
- You can study this guide at the same time as learning griffiths.
https://www.amazon.com/dp/0393925161/?tag=pfamazon01-20

If not, I don't think it's a good idea to study griffiths without solid single variable calculus. Some of the parts are understandable but you wouldn't be able to solve most problems.
 

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