解方程组,4.5v/R2=U-4.5V/30Ω3V/(R2/2=u-3V/30Ω是一个方程组.
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/10/02 18:10:19
解方程组,
4.5v/R2=U-4.5V/30Ω
3V/(R2/2=u-3V/30Ω
是一个方程组.
4.5v/R2=U-4.5V/30Ω
3V/(R2/2=u-3V/30Ω
是一个方程组.
4.5/R2 = U-4.5/30.(1)
3/(R2/2) = U-3/30.(2)
(1)-(2):
4.5 / R2- 3/(R2/2) = (-4.5+3)/30
4.5 / R2-6/(R2) = (-4.5+3)/30
-1.5 / R2) = -1.5/30
R2=30Ω
将其代回(1):
4.5/30 = U - 4.5/30
U=2*4.5/30=0.3V
如果方程组如下:
4.5/R2 = (U-4.5)/30.(1)
3/(R2/2) = (U-3)/30.(2)
(1)÷(2):
{4.5/R2} / {3/(R2/2)} = {(U-4.5)/30} / {(U-3)/30}
4.5/6 = (U-4.5)/(U-6)
3/4 = (U-4.5)/(U-3)
4 (U-4.5) =3(U-3)
4U-18 =3U-9
U=9V
将其代回(1):
4.5/R2 = (9- 4.5)/30
R2=30Ω
3/(R2/2) = U-3/30.(2)
(1)-(2):
4.5 / R2- 3/(R2/2) = (-4.5+3)/30
4.5 / R2-6/(R2) = (-4.5+3)/30
-1.5 / R2) = -1.5/30
R2=30Ω
将其代回(1):
4.5/30 = U - 4.5/30
U=2*4.5/30=0.3V
如果方程组如下:
4.5/R2 = (U-4.5)/30.(1)
3/(R2/2) = (U-3)/30.(2)
(1)÷(2):
{4.5/R2} / {3/(R2/2)} = {(U-4.5)/30} / {(U-3)/30}
4.5/6 = (U-4.5)/(U-6)
3/4 = (U-4.5)/(U-3)
4 (U-4.5) =3(U-3)
4U-18 =3U-9
U=9V
将其代回(1):
4.5/R2 = (9- 4.5)/30
R2=30Ω
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