Lời đăng bởi: pdyphong
- Tnh in tr ca mch ngoi da vo s mc in tr
- Vit nh lut m
Lu :
+ Vi dng in: Nu cha bit chiu dng in th ta chn mt chiu no cho I, sau da vo kt qu nx
I > 0 nu dng in cng chiu chn (T A n B)
I 0 nu dng in i ra t * dng (ngun in)
E < 0 nu dng in i vo * dng (my thu)
- Thc hin tnh ton a ra kt qu bi ton
- i vi mch c cha * t in th ta lu : Khng c dng in chy qua on mch cha t