Answer:
1) Appliances are connected in parallel
2) Appliances are connected in parallel
3) Appliances are connected in parallel (because in house , appliances are connected in parallel)
4) Advantage :- Such kind of connections assures that even if one or more appliances stops working , the working of other appliances will remain unaffected because in such connections , voltage remains constant
Disadvantage :- Such circuits can draw more power which leads to high bill charges on electricity. Also such connections need more wiring.