Solving Resistivity Equations: Step-by-Step Guide

  • Thread starter Thread starter JoneS
  • Start date Start date
  • Tags Tags
    Resistivity
Click For Summary
SUMMARY

The discussion focuses on solving resistivity equations, specifically the relationships between voltage, current, and resistance. The formulas mentioned include m = y/x (where m represents the slope), m = volt/amp, and r = 1/m for calculating resistance. Additionally, the resistivity formula is given as resistivity = r * (a/l), where p = r * l/a. Participants express confusion over incorrect results after applying these formulas, indicating a need for clarification on the calculations and variables involved.

PREREQUISITES
  • Understanding of Ohm's Law and basic electrical principles
  • Familiarity with resistivity and its significance in materials science
  • Ability to interpret and create graphs for voltage and current
  • Knowledge of algebraic manipulation for solving equations
NEXT STEPS
  • Review Ohm's Law and its applications in electrical circuits
  • Study the concept of resistivity and its dependence on material properties
  • Learn how to accurately plot and interpret voltage-current graphs
  • Practice solving resistivity equations with different materials and configurations
USEFUL FOR

Students in physics or engineering, electrical engineers, and anyone involved in materials testing or electrical circuit design will benefit from this discussion.

JoneS
Messages
3
Reaction score
0
it all seemed pretty easy to start off with I've got all my results.
Voltage against current with a variable thing. but i can't do the equation, i have drawen up the graphs and followed the formulas but the results all come out wrong.

formulas: m=y/x m=volt/amp r=1/m which is the resistance
resistivity= r=p*a/l p=r*l/a

After competing these formulas the result comes out wrong HELP:frown:
 
Physics news on Phys.org
Originally posted by JoneS
... with a variable thing.
Huh?




Originally posted by JoneS
... i can't do the equation, ...
What do you mean by this?




Originally posted by JoneS
After competing these formulas the result comes out wrong ...
What result? What are you trying to find?
 
i know... wut the hell? did u read the question after tuyping it?
 

Similar threads

Resistivity equation relating to equations for resistors
  • · Replies 23 ·
Replies
23
Views
3K
Platinum resistance thermometer and Kirchoff's Laws
  • · Replies 1 ·
Replies
1
Views
3K
Which equation is used to define resistance?
  • · Replies 10 ·
Replies
10
Views
2K
Long distance electrical transmission efficiency
  • · Replies 2 ·
Replies
2
Views
3K
Find the resistance and EMF in a circuit
  • · Replies 15 ·
Replies
15
Views
2K
Help! Finding Direction of Current in Magnetic Circuit
  • · Replies 9 ·
Replies
9
Views
2K
Resistance Association - How to solve this exercise in the proper way?
  • · Replies 2 ·
Replies
2
Views
809
How Do Electromagnets Repel Each Other in a Zero-Resistance Environment?
  • · Replies 6 ·
Replies
6
Views
2K
Lab: Plot graph of resistance, R (in Ohms) versus 1/d^2
  • · Replies 21 ·
Replies
21
Views
12K
Calculate the total resistance by integration using the conductivity equation
  • · Replies 5 ·
Replies
5
Views
3K