A magnetic field is a vector quantity because of directional force.
Option A
<u>Explanation</u>:
The magnetic field at any case is a vector quantity as it has both magnitude and direction. A magnetic field has a direction associated with a field as well as the strength of the field. The magnetic field is the space that the magnet creates around itself and is hence a vector quantity as it can be experienced. The S.I. unit of magnetic field is Tesla. It is to be noted that a magnetic field always contains strength.
A vector quantity is a quantity which has both a magnitude and a direction. A field is always associated with a force, which means that the field produces a force on an object located in the field. ... Therefore, the magnetic field is a vector quantity since it is associated with a directional force
The answer should be D) Cold air because even though its true sound can travel through all types of matter, air which is a gas, can travel but it travels SLOWLY while sound travels quickly in SOLIDS.