87. 1 vector potential and scalar potential potentials are slightly different from the static cases 1.a) vector potentia sinceB=0, we can introduce vector potential A as the static field,B=VxA§7.1 vector potential and scalar potential potentials are slightly different from the static cases since ，we can introduce vector potential as the static field,  B = 0  A  B A   =  1.a）vector potential