In a step-up transformer the number of turns, in the secondary coil are more than the number of turns in the primary coil. Thus the
i) voltage and
ii) current in the secondary coil is
i) Less and ii) More than that in the primary coil
In a step-up Transformer the voltage increases and current decreases. Hence the i) voltage and ii) current in the secondary coil is Less and More than that in the primary coil as compared to the secondary.