What is the value (magnitude) of the electric | vedclass

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Question

(A) Field emission is a process where electrons are emitted from the surface of a metal due to the application of a very strong external electric fiel

Vedclass · Accepted Answer

$10^8 \ V/m$

Vedclass · Answer

(A) Field emission is a process where electrons are emitted from the surface of a metal due to the application of a very strong external electric field.This strong electric field pulls the electrons out of the metal surface by reducing the potential barrier.The magnitude of the electric field required for this process is typically of the order of $10^8 \ V/m$.Therefore,the correct option is $A$.

What is the value (magnitude) of the electric field required for field emission?

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