Recent content by Obsqura

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    Two Resistors in a Parallel Circuit

    Homework Statement Two resistors of X and Y are in parallel with one another and in series with a 200 Ω resistor and a battery whose emf is 1.5 volt and whose internal resistance is 0.5 Ω. The resistance of X is 100 Ω. When Y is disconnected from X, an additional resistance of 50 Ohms must...
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    How Do You Calculate Time Constant and Capacitance in an RC Circuit?

    As far as I know, it cannot be negative. I just wanted to make sure I solved it correctly.
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    How Do You Calculate Time Constant and Capacitance in an RC Circuit?

    Okay, thanks. Does this sound about right? I used equation i = E/R at time 0 to get i = 4.4 * 10^-3. Then used the equation i = I0e^(-t/RC) and solved for C. I used what was given at the new time and the I0 that I solved for to get: 0.0022A = 4.4*10^-3A e^(-0.0038s/450ΩC) I then...
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    How Do You Calculate Time Constant and Capacitance in an RC Circuit?

    Homework Statement A battery with emf = 2V is connected to a RC circuit with a 450Ω resistor and an unknown capacitor. After 3.8 milliseconds, the current is 2.2mA. (a) Find the time constant and the capacitance. (b) Now, 2.9 ms after the charging begins, find the current I, the charge...