Question

Liana draws a diagram to show the direction of the electric force acting on a charged particle in a uniform electric field.

Parallel vectors of equal length pointing right labeled E. A positive charge is in the middle with a vector up labeled F Subscript e baseline.
Which change would make the diagram correct?

changing the charge to negative
making the field lines point down
changing the force to point right
removing the force arrow

Answer 1

Changing the force to point right.

Reason: for a positive charge the electric force Fe = qE is in the same direction as the electric field. Since E points right, Fe must point right.