Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
What does Ohm's law state?
What does Ohm's law state?
- $I = rac{V}{R}$
- $V = IR$ (correct)
- $I = VR$
- $R = VI$
What happens to the resistance in Ohm's law?
What happens to the resistance in Ohm's law?
- It is constant, independent of the current (correct)
- It varies depending on the voltage
- It decreases as current increases
- It increases as current increases
What is the unit of resistance?
What is the unit of resistance?
- Ohm ( ext{Ω}) (correct)
- Volt (V)
- Ampere (A)
- Watt (W)
What materials do not obey Ohm's law?
What materials do not obey Ohm's law?
Signup and view all the answers
Who is Ohm's law named after?
Who is Ohm's law named after?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Ohm's Law
- Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
- Mathematically, it is represented as I = V/R, where I is the current, V is the voltage, and R is the resistance.
Resistance in Ohm's Law
- According to Ohm's law, the resistance of a conductor remains constant, regardless of the voltage or current applied.
Unit of Resistance
- The unit of resistance is Ohm (Ω), named after Georg Ohm, the German physicist who formulated the law.
Materials that Disobey Ohm's Law
- Certain materials, such as semiconductors, superconductors, and diodes, do not obey Ohm's law, as their resistance does not remain constant with changes in voltage or current.
Origin of Ohm's Law
- Ohm's law is named after Georg Ohm, a German physicist who first formulated the law in 1827.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
