数学英语朱老师
2022-10-19
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既然选择了远方,那便只顾风雨兼程!
关注
电流强度:I=Q电量/t
电阻:R=ρL/S
欧姆定律:I=U/R
焦耳定律:Q=UIt=Pt
5.串联电路:
(1)I=I1=I2
(2)U=U1+U2
(3)R=R1+R2
(4)U1/U2=R1/R2
(5)P1/P2=R1/R2
6.并联电路:
(1)I=I1+I2
(2)U=U1=U2
7.定值电阻:
(1)I1/I2=U1/U2
(2)P1/P2=I12/I22
(3)P1/P2=U12/U22
8.电功:
W=UIt=Pt=UQ
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