Which of the following is a vector quantity?

The correct answer is the Electric field.

Key Points

• The electric field is a vector quantity.
  • It has both magnitude and direction.
  • The magnitude of the electric field strength is defined in terms of how it is measured.
• Electric current is a scalar quantity.
  • Any physical quantity is defined as a vector quantity when the quantity has both magnitude and direction but there are some other factors that show that electric current is a scalar quantity.
• Electric flux is a scalar quantity because it's the dot product of two vector quantities, the electric field, and the perpendicular differential area.
• The electric charge has only magnitude and no direction.

Additional Information

• Physical quantities can have different "sizes", as a scalar, a vector, or a tensor.
  • Scalars :
    • A scalar is a physical quantity that has magnitude but no direction.
    • Symbols for physical quantities are usually chosen to be a single letter of the Latin or Greek alphabet and are printed in italic type.
  • Tensors :
    • Scalars and vectors and the simplest tensors can be used to describe more general physical quantities.
    • For example, the Cauchy stress tensor possesses magnitude, direction, and orientation qualities.