Which of the following statements are not true about electric force F_e and magnetic force Fm on a charged particle?
(a) E and F_e are parallel to each other, whereas B and F_m are perpendicular to each other.
(b) Both F_e and F_m depend on the velocity of the charged particle.
(c) Both F_e and F_m can perform work.
(d) Both F_e and F_m are produced when a charged particle moves at a constant velocity.
(e) Fm is generally small in magnitude in comparison to F_e.
(f) Fe is an accelerating force, whereas F_m is a purely deflecting force.