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 Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. Assertion is true but Reason is false
• D. Assertion is false but Reason is true

Answer 1

Answer: (A)

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.