  We show in this letter that P- and T-odd terms of the electromagnetic
potentials (P; parity, T; time reversal) are induced and lead an unusual
phenomenon in P- and T-violating superconductors discovered recently. The
Ginzburg-Landau action includes this term in the gauge invariant manner. The
coefficient of the term is nearly topological invariant with a small correction
and equals to the fine structure constant approximately. Unusual ``Hall
effect'' {\it without external} magnetic field could be observed by SQUID.
