1. Tardigrade
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  3. Physics
  4. Assertion Though large number of free electrons is present in the metal. Yet there is no current in the absence of electric field. Reason In the absence of electric field electrons move randamly in all directions.

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Q. Assertion Though large number of free electrons is present in the metal. Yet there is no current in the absence of electric field.
Reason In the absence of electric field electrons move randamly in all directions.

AIIMSAIIMS 2011

Solution:

Free electrons present in the metal are moving randamly in all directions, in the absence of electric field. Hence, the average velocity of electron is zero. Because of if the current does not flow in the metal in the absence of electric field.