mach dao dong kho va hay ai giai giup minh voi

N

n0vem13er

[TEX]w^2 = \frac{1}{LC} => C = \frac{1}{w^2.L}[/TEX]
khi mắc nối tiếp : [TEX]C = \frac{C1.C2}{C1+C2} L = L1 + L2[/TEX]

[TEX]LC = \frac{C1.C2}{C1+C2}.(L1+L2) = \frac{\frac{1}{w^2.L1}. \frac{1}{w^2.L2}}{ \frac{1}{w^2.L}+ \frac{1}{w^2.L}}.(L1+L2)[/TEX]

[TEX]LC = \frac{1}{w^2} => w' = w[/TEX] vậy T = 1ms
 
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