Which is a vector quantity?
electric energy
electric charge
electric power
electric field intensity
electric field is a vector quantity. electric force is a vectory quantity.
A proton moves in a constant electric field E from point A to point B. The magnitude of the electric field is 6.4 × 104 N/C; and it is directed as shown in the drawing, the direction opposite to that of the proton. If the distance from point A to point B is 0.50 m, what is the change in the proton's electric potential energy, EPEA – EPEB?
In order to determine which of these is a vector quantity, we need to understand what a vector quantity is.
A vector quantity is a quantity that has both magnitude (size) and direction. It is represented by an arrow, with the length of the arrow representing the magnitude and the direction of the arrow representing the direction.
Out of the options you have provided, electric field intensity is a vector quantity.
To verify this, one can refer to any standard physics textbook or online resource that covers the topic of electric field. The definition of electric field intensity involves both magnitude (measured in volts per meter) and direction. The electric field intensity at a point in space due to a charged particle or a system of charges tells us the force that a positive charge would experience at that point, as well as the direction in which the force would act. Hence, it qualifies as a vector quantity.