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Assertion: Drift velocity of electrons d...

Assertion: Drift velocity of electrons developed in a current-carrying conductor is of the order of `10^(-4) m//s` but current in the conductor is established almost instantly the switch is closed.
Reason: Electric field in a conductor sets up with the speed of light.

A

If both assertion and reason are correct and reason is a correct explanation of the assertion

B

If both assertion and reason are correct but reason is not the correct explanation of the assertion

C

If assertion is correct but reason is incorrect

D

If assertion is incorrect but reason is correct

Text Solution

Verified by Experts

The correct Answer is:
A
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A :The drift velocity of electrons in a conductor is very small still current in a conductor is establised almost instantaneously on closing the switch. R: Electric field in the condutor sets up with speed of light.

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