Question:
The drift speed of electrons in a conductor is estimated to be only a few mm s-1, But on closing a circuit, how current is established almost instantly in an electric circuit?
The drift speed of electrons in a conductor is estimated to be only a few mm s-1, But on closing a circuit, how current is established almost instantly in an electric circuit?
Updated On: May 4, 2025
- Electrons are accelerated towards the positive end of the conductor while their velocity increases towards the other end
- Drift velocity of electrons increases
- Electric field is established throughout the circuit with the speed of an electromagnetic wave, causing at every point local electron drift causing current.
- The electrons drift towards the negative end
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The Correct Option is C
Solution and Explanation
The correct option is(C):Electric field is established throughout the circuit with the speed of an electromagnetic wave, causing at every point local electron drift causing current.
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