How to Find Vy(t) in a Voltage Divider Circuit with Capacitors

Or you can type the bbcode tags manually in the text.[code] C1 C2 | | | | | | Is Up | | | | | | | |____________________|_________|[/code]In summary, we are given a circuit with a current source (Is), two capacitors (C1 and C2), and an unknown voltage (Vy). We are asked to find Vy(t) in terms of t, given that Is=10uA, C1=4000pF, and C2=1000pF. After attempting to use voltage divider by capacitors, it is clear that this is not
  • #1
steven77723
4
0

Homework Statement



Find Vy(t) in terms of t, where Is=10uA, C1=4000pF, C2=1000pF

_Vx_____||___ Vy_||____
| C1 C2 |
| |
| |
Is Up |
| |
| |
| |
______________________

Homework Equations



Vx(t)=Is*t/Ceq




The Attempt at a Solution



I tried using voltage divider by capacitors, so Vy=Vx*c1/(c1+c2) but I don't think that this is right.
 
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  • #2
Your figure is incomprehensible to me.
 
  • #3
There's supposed to be a wire going down on the right. Also, the current source Is is pointing upwards
 
  • #4
More than one consecutive space gets deleted here.
 
  • #5
skeptic2 said:
More than one consecutive space gets deleted here.

Right. If you want to create unmangled ascii drawings, consider wrapping them in "
Code:
" tags.  Use the "Advanced" editing panel and find the "code" icon.
 

FAQ: How to Find Vy(t) in a Voltage Divider Circuit with Capacitors

1. What is voltage across capacitors?

Voltage across capacitors refers to the potential difference or electrical pressure that exists between the two plates of a capacitor. It is measured in volts and determines the amount of electrical energy stored in the capacitor.

2. How is voltage across capacitors calculated?

The voltage across capacitors can be calculated using the formula V = Q/C, where V is the voltage, Q is the charge stored on the capacitor, and C is the capacitance. Alternatively, it can also be calculated by multiplying the current (I) flowing through the capacitor by the capacitance (C), giving the formula V = I x C.

3. What factors affect the voltage across capacitors?

The voltage across capacitors is affected by the capacitance, the amount of charge stored on the capacitor, and the type of dielectric material used between the plates. It is also affected by the frequency and amplitude of the alternating current passing through the capacitor.

4. How does the voltage across capacitors change in a series circuit?

In a series circuit, the voltage across capacitors is divided between the capacitors according to their respective capacitances. The total voltage across all capacitors in a series circuit is equal to the sum of the individual voltages.

5. How does the voltage across capacitors change in a parallel circuit?

In a parallel circuit, the voltage across capacitors is the same for all the capacitors. This is because they are connected in parallel, allowing them to have the same potential difference or voltage across them. However, the total capacitance in a parallel circuit is equal to the sum of the individual capacitances.

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