Home
Class 12
PHYSICS
(A): Electric current density is a vecto...

(A): Electric current density is a vector
(R): A physical quantity having magnitude and direction should be always a vector.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise EXERCISE-IB (Addition and subtraction of vectors)|10 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise EXERCISE-IB (Resolution of vectors )|1 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise EXERCISE-A (Matching)|7 Videos

  • MAGNETISM

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|13 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise QUESTION FOR DESCRIPTIVE ANSWER|7 Videos

Similar Questions

Explore conceptually related problems

(A): Electric Current and velocity of light both have direction as well as magnitude but still are not considered as vectors. (R): They do not follow laws of vector addition.

(A) : Electric Current and velocity of light both haqve direction as well as magnitude but still are not considered as vectors. ( R) : They do not follow laws of vector addition

Knowledge Check

  • A physical quantity with magnitude as well as direction is called ……… quantity.

    A
    scalar
    B
    vector
    C
    linear
    D
    none of these

  • The physical quantity with only magnitude is called ……………

    A
    scalar
    B
    vector
    C
    axial
    D
    linear

  • Assertion (A) : Displacement is a vector. Reason ( R) : Displacement has both magnitude and direction.

    A
    Both A and R are true and R supports A.
    B
    Both A and R are true but R does not support A.
    C
    A is true but R is false.
    D
    A is false but R is true.

    • Similar Questions

    Explore conceptually related problems

    A scalar quantity and a vector quantity having the same dimensions are

    A scalar quantity and a vector quantity having the same dimensions are

    A scalar quantity and a vector quantity having the same dimensions are

    The pair of vector quantities having the same dimensions is

    The pair of vector quantities having the same dimensions is

    Home
    Profile