Drift velocity (concept & intuition) | Electricity | Physics | Khan Academy
Khan Academy India - English・2 minutes read
George Ohm established Ohm's Law in 1827, and upcoming videos will focus on how electrons contribute to understanding the law, exploring concepts like drift velocity and the motion of electrons in a conductor. The presence of a battery accelerates electrons towards the positive terminal, leading to drift motion and energy transfer to ions, resulting in heat generation within the conductor.
Insights
- Ohm's Law, established by George Ohm in 1827, states that the current flowing through a conductor is directly proportional to the potential difference applied across it, providing a fundamental relationship in understanding electrical circuits.
- Exploring the microscopic perspective of Ohm's Law reveals that the motion of electrons within a conductor, driven by a battery-induced drift velocity, is essential for the flow of current, highlighting the intricate interplay between electron behavior, acceleration, collisions, and thermal effects in electrical systems.
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Recent questions
What is Ohm's Law?
Ohm's Law states current equals potential difference.
How do electrons move in a conductor?
Electrons move randomly without a battery.
What is drift velocity?
Drift velocity is the constant velocity of electrons.
How do electrons transfer energy in a conductor?
Electrons transfer energy to ions upon collision.
How does drift velocity change with temperature?
Drift velocity decreases with higher temperature.
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