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2 years ago

7

Two capacitors C1 and C2 are charged to 120V and 200V respectively. It is found that by connecting them together the potential o

n each one can be made zero. Then what is the relation between C1 and C2

1 answer:

Reil [10]2 years ago

6 0

V1=q1/C1. V2=q2/C2. If the potentials cancel then the charge, q, was equal. q1=q2. Therefore V1*C1=V2*C2, or
C1/C2=V2/V1=200/120=1.667

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Answer:

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m = Mass of Satellite

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$v=\frac{2\pi \times r}{24\times 3600}$

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$m\frac{v^2}{r}=\frac{GMm}{r^2}\\\Rightarrow \frac{\left(\frac{2\pi \times r}{24\times 3600}\right)^2}{r}=\frac{6.667\times 10^{-11}\times 5.98\times 10^{24}}{r^2}\\\Rightarrow \left(\frac{2\pi \times r}{24\times 3600}\right)^2=6.667\times 10^{-11}\times 5.98\times 10^{24}\\\Rightarrow r^3=\frac{6.667\times 10^{-11}\times 5.98\times 10^{24}\times (24\times 3600)^2}{(2\pi)^2}\\\Rightarrow r=\left(\frac{6.667\times 10^{-11}\times 5.98\times 10^{24}\times (24\times 3600)^2}{(2\pi)^2}\right)^{\frac{1}{3}}\\\Rightarrow r=42244138.951\ m$

The radius as measured from the center of the Earth) of the orbit of a geosynchronous satellite that circles the earth is 42244138.951 m

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