dot product Vs cross product
|Dot product or scalar product||Cross product or vector product|
|If the product of two vectors is a scalar quantity,the product is called scalar product or dot product.||If the product of two vectors is a vector quantity then the product is called vector product or cross product.|
The dot product is defined by the relation:
A . B = AB Cos θ
The cross product is defined by the relation:
A × B = AB Sinθ u
The scalar product obeys commutative law as
The vector or cross product does not obey commutative law
If two vectors are perpendicular to each other then their scalar product is zero.
If two vectors are parallel to each other,their vector product is zero.