  For relativistic Weyl fermions in 3+1 dimensions, an electric current
proportional to the external magnetic field is predicted. This remarkable
phenomenon is called Chiral Magnetic Effect (CME). Here we show that actual
transports in Weyl semimetals supporting CME cannot be discussed without proper
consideration of the law of electromagnetism. First, even in the absence of an
external magnetic field, CME leads to a material-independent, universal
effective capacitance. Moreover, the induced current by a time-dependent
external magnetic field can be resonantly enhanced reflecting a formation of
electromagnetic standing waves.
