  The effects of the tidal charge of black holes predicted in the
Randall-Sundrum brane-world scenario on the electromagnetic cross sections and
emission rate is studied. Although quantitatively different, the cross sections
and emission rates of such black holes are similar to the ones of Schwarzschild
black holes. The increase of the tidal-charge intensity makes the absorption
cross sections increase and the interference-fringe widths of the differential
scattering cross sections narrow. The electromagnetic emission rate increases
initially with the increase of the tidal-charge intensity, but reaches a
maximum. This results from the combination of opposite behaviors of the
absorption cross section and the black hole temperature, as this last decreases
with the increase of the tidal-charge intensity. It is shown that the cross
sections obtained via the partial-wave method agree well with the
high-frequency approximations, and can also been simulated by their scalar
analogues in certain limits.
