Are you taking CLEP classes? Try clep.ai
| preferred AP College board partner for AP classes
AP Physics C: E&M/Unit 11 – Electric Circuits
Start Practice TestPractice Test
About Exam
hard

Microscopic Ohm's Law and Non-Ohmic Materials

Mark
< Prev
Next >

For a non-ohmic material, how does the relationship E⃗=ρJ⃗\vec{E}=\rho \vec{J} describe its deviation from Ohm’s law?

A

It indicates that Ohm’s law applies universally to all types of materials, including semiconductors

B

It suggests that electric field is inversely proportional to current density in all materials

C

It proves that the electric field is always perpendicular to the current density vector

D

It implies that resistivity can vary with current density, contradicting Ohm’s law’s assumption of constant resistance

Hint
Did You Know?
Explain Why
Explain All Answers
Check Answer
Show Correct Answer
Report Question

Question Leaderboard

Not enough data yet to show leaderboard.

AI Tutor

How can I help?

APFIVE © 2020.
Email: apfive@apfive.org|Privacy Policy|