A student measures the welght of a magnesium block to be 1.656g, but the manufacturer claims
that it is 1.575g. What is the error in the
student's measurement?
A
B
-0.081
+0.081

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

answer: they produce more slow than unicellular organisms.