Which of the following describes metallic character on the periodic table? A. It increases as you move right to left within a period and down a group on the periodic table.
B. It increases as you move left to right within a period and down a group on the periodic table.
C. It increases as you move right to left within a period and up a group on the periodic table.
D. It increases as you move left to right within a period and up a group on the periodic table.
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Option A.

Explanation:

If you picture the Periodic Table in your head...

you'd see that the Metals are located at the left hand part of the periodic table and their Metallic Character Increases as you go down the group.

So if you travel from the right, towards the left...You'd come across your Metals.

In order words... Option A is your answer.

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