Is Electric field a scalar?

No, the electric field is not a scalar quantity; it is a vector quantity. A vector quantity has both magnitude and direction. The electric field is a measure of the force experienced by a charged particle in an electric field per unit charge. It has both magnitude (measured in newtons per coulomb or volts per meter) and direction, indicating the direction in which a positive test charge would move when placed in the field. Therefore, the electric field is a vector quantity.