Find Voltage at Time t=1: Solve Current in a Circuit

In summary, the conversation is about finding V(t=1) and dV/dt given V(t=0), time, and capacitance. The person asking for help has relevant equations and is wondering if someone can explain the process for finding the voltage at time = 1.
  • #1
xpack
37
0
http://img36.imageshack.us/img36/101/26360514.jpg [/URL]
http://img16.imageshack.us/img16/8476/28231609.jpg [/URL]
I know that V(t=0) is 20 and time = 1 and capacitance = .1
what I'm having trouble is finding V(t=1) to find dV/dt. Can someone help me?
 
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  • #2
xpack said:
http://img36.imageshack.us/img36/101/26360514.jpg [/URL]



http://img16.imageshack.us/img16/8476/28231609.jpg [/URL]



I know that V(t=0) is 20 and time = 1 and capacitance = .1
what I'm having trouble is finding V(t=1) to find dV/dt. Can someone help me?

Any work that you've tried and/or relevant equations you could use?
 
Last edited by a moderator:
  • #3
Yeah relevant equations are
http://img16.imageshack.us/img16/8476/28231609.jpg [/URL]

And I'm not asking for the answer. More of if someone can explain to me how to find voltage at time = 1
 
Last edited by a moderator:
  • #4
Okay right now you have a differential equation. Can you follow Kirchoff's Voltage Law to determine what that is going to be? I'm not sure at what level you are academically, so I'm not sure if the derivation would be the correct path to go down...
 

1. What is the formula for finding voltage in a circuit?

The formula for finding voltage in a circuit is V = IR, where V is the voltage, I is the current, and R is the resistance.

2. How do I solve for current in a circuit?

To solve for current in a circuit, you can use the formula I = V/R, where I is the current, V is the voltage, and R is the resistance. This formula is known as Ohm's Law.

3. What is the significance of t=1 in finding voltage at a specific time?

In a circuit, t=1 represents a specific time, such as 1 second. This is important because the current and voltage in a circuit can change over time, so it is necessary to specify a time to accurately calculate the voltage at that moment.

4. How do I measure the voltage in a circuit?

To measure the voltage in a circuit, you will need a voltmeter. Connect the voltmeter in parallel to the component or circuit you want to measure the voltage of, and read the value on the voltmeter.

5. Can I use any units for voltage and current in the formula?

Yes, you can use any units for voltage and current in the formula, as long as they are consistent. The most commonly used units for voltage are volts (V) and for current are amps (A).

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