Ohm's Law and its implications

  • Context: Undergrad 
  • Thread starter Thread starter spaghetti3451
  • Start date Start date
  • Tags Tags
    Law Ohm's law
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
3 replies · 4K views
spaghetti3451
Messages
1,311
Reaction score
31
How can Ohm's law explain the fact that the resistance of a wire depends directly on length and inversely with area?
 

Discussion

Physics news on Phys.org
failexam said:
How can Ohm's law explain the fact that the resistance of a wire depends directly on length and inversely with area?

What are your thoughts on the question?
 
Well, the voltage has something to do with the length and the current with the time. (V= EL and I = JA). Is resistivity the quotient of E over J?
 

Similar threads

Undergrad Does Ohm's Law work for Light Bulbs?

  • Albertgauss
  • · Replies 57 ·
  • Electromagnetism
2
Replies
57

Undergrad Did Ohm, Ampere, and Volta Collaborate on Ohm's Law?

  • akerkarprashant
  • · Replies 20 ·
  • Electromagnetism
Replies
20

Undergrad Propagation of Errors, Ohm's Law

  • Albertgauss
  • · Replies 6 ·
  • Electromagnetism
Replies
6

High School Gravity equivalent of Ohm's law

  • Nathi ORea
  • · Replies 32 ·
  • Electromagnetism
2
Replies
32

High School Meaning of Current in Ohm's law

  • FS98
  • · Replies 11 ·
  • Electromagnetism
Replies
11

Undergrad Current & Ohm's Law: Continuous vs Discrete?

  • Schfra
  • · Replies 11 ·
  • Electromagnetism
Replies
11

Graduate Generalized Ohm's Law: Current Density & Capacitance

  • mertcan
  • · Replies 1 ·
  • Electromagnetism
Replies
1

High School Uncovering the Origin of Ohm's Law

  • farid_11_22
  • · Replies 8 ·
  • Electromagnetism
Replies
8

High School Does Ohm's Law Apply to a Circuit with Current but No Voltage?

  • FS98
  • · Replies 7 ·
  • Electromagnetism
Replies
7

Undergrad Microscopic Ohm's Law: Point-Dependent Resistance?

  • RaduAndrei
  • · Replies 7 ·
  • Electromagnetism
Replies
7