A vector has both magnitude and direction. Does it mean that anything

1.	A vector has both magnitude and direction. Does it mean that anything that has magnitude and direction is necessarily a vector?
Answer» 1. For a physical quantity, only having magnitude and direction is not a sufficient condition to be a vector. 2. A physical quantity also has to obey vectors law of addition to be termed as vector. 3. Hence, anything that has magnitude and direction is not necessarily a vector. Example: Though current has definite magnitude and direction, it is not a vector.

A vector has both magnitude and direction. Does it mean that anything that has magnitude and direction is necessarily a vector?

Answer»

1. For a physical quantity, only having magnitude and direction is not a sufficient condition to be a vector.

2. A physical quantity also has to obey vectors law of addition to be termed as vector.

3. Hence, anything that has magnitude and direction is not necessarily a vector.

Example: Though current has definite magnitude and direction, it is not a vector.