Home
Class 12
PHYSICS
Assertion: Through large number of free...

Assertion: Through large number of free electron are present in the metal, yet there is no current in the absent of electric field.
Reason: In the absence of electric field, electrons move remdomly in all directions

A

Statement I is true, Statement II is True, Statement II is a correct explanation for statement I.

B

Statement I is true, Statement II is True, Statement II is Not a correct explanation for statement I.

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is True.

Text Solution

Verified by Experts

The correct Answer is:
A
Free electrons present in the metal are moving randomly in all directions in absence of the electric field. Hence, the average velocity of electrons is zero. Because of it the current does not flow in the metal in the absence of electric field.
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS|Exercise Comprehension Type|94 Videos

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS|Exercise Interger Answer type|20 Videos

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS|Exercise Multiple Correct Answer type|109 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    CENGAGE PHYSICS|Exercise Question Bank|4 Videos

  • MISCELLANEOUS VOLUME 5

    CENGAGE PHYSICS|Exercise Integer|12 Videos

Similar Questions

Explore conceptually related problems

A large number of free electrons are present in metals. Why is there no current in the absence of electric field across ot, but threre is a current in the presence of electric field?

Assertion : There is no current in the metals in the absence of electric field. Reason : Motion of free electron are randomly.

The average velocity of electrons in a conductor in the absence of electric field is

Assertion: Drift velocity of electrons is independent of time. Reason: Electrons are accelerated in the presence of electric field.

When electric field (vec(E)) is applied on the ends of a conductor, the free electrons starts moving in direction

If an electron has an initial velocity in a direction different from that of an electric field, then the path of the electron is

In the absence of electric field, the mean velocity of the electrons in a conductor at absolute temperature T is