1.电阻的串联
电流:I=____________.电压:U=____________.
电阻:R=____________.
电压分配:=________,=________.
功率分配:=________,=________.
2.电阻的并联
电流:I=________________.电压:U=________________.
电阻:=________________________.
电流分配:=________,=________.
功率分配:=________,=________.