[问答题]
1.Define electric potential ezs0kf:wz*d1a k :nk w6b.k0cnl/hsi ) neri06vjzdo: z s0b qm,6cgy.
2.Two parallel plates are at potentials −2V and +12V as shown in the diagram.
On the diagram, sketch
(1)The pattern of electric field lines between the two plates
(2)The equipotential line which represents zero volts.
3.Calculate the work done by the electric field on a charge of −6.0μC when it is moved from plate B to plate A.