A pair of parallel plates is charged by a 12-V battery. How much work is required to move a particle with a charge of --4.0 microcoulombs (MC) from the positive to the negative plate? Given that, Emf = 12 V q = -4 x 10 -6 C I have, Work done (w) = q x V = -4 x 10 -6 x 12 = - 4.8 x 10-5 J ??? ‘-‘sign indicates that work is done against the force of repulsion Is my work/answer correct??