why do computer charges have that big block

Question

for example, on my windows laptop, there is the plug that goes into the outlet, some wire, a big block of plastic, and then more wire that connects to the charger that goes into the charging port. why is that block there?

In: Technology

Answer 1

it is coverting the AC from your home/office/whatever into DC which is much better for electronics. the block contains the rectifier and transformer