Which of the following is not a vector quantity ?

Options

A. Acceleration
B. Electric current
C. Force
D. Velocity

Answer

B

Explanation

For a physical quantity to be termed a vector quantity, having magnitude and direction is not enough. The quantity should obey the laws of vector addition, too. Electric current is a scalar quantity.It represents the direction of flow of positive charge but it is treated as a scalar quantity because current follows the laws of scalar addition and not the laws of vector addition. This is because the angle between the wires carrying current do not affect the total current in the circuit.