Question

Assertion : Current and time both have direction as well as magnitude but still are not considered Vector.

Reason : They do not follow laws of vector addition

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

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

(c) A is true but R is false

(d) A and R are false

Answer 1

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

Explanation :

A physical quantity to be treated as a vector, it is necessary for it to have both magnitude and direction. But this is not a sufficient condition for the physical quantity to be treated as a vector. A vector quantity has to follow the laws of vector addition. That's why, even though current and time have both magnitude and direction. they are not considered as vectors.