The solid and liquid phases of water can exist in
a state of equilibrium at 1 atmosphere of pressure
and a temperature of
(1) 0°c (3) 273°c
(2) 100°c (4) 373°c

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

what's the