Answer the following about the differences between American and European plug sockets for 10 points each.
[10e] Unlike European plugs, the older "type A" design of American plugs have this many pins. Simple batteries have this number of terminals.
ANSWER: two
[10m] The extra third pin found on European and newer American plugs has this function.
ANSWER: grounding [or earthing]
[10h] The design standards for both American and European plugs are set by this international organization based in Geneva. It sets standards for electrical components, most now designated by five-digit numbers, to improve compatibility between devices worldwide.
ANSWER: IEC [or International Electrotechnical Commission]
<Joseph Krol , Science - Physics - Electromagnetic>