AC Circuit Analysis - Capacitor

Thread starter Gorz
Start date Apr 28, 2009
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Ac Ac circuit Analysis Capacitor Circuit Circuit analysis

AI Thread Summary

To calculate the current i12 flowing through a 10 microfarad capacitor with a voltage v12 of +50V decreasing at a rate of 104V/s, the relationship between voltage, charge, and capacitance is used, expressed as Vab = Q/C. The current through the capacitor can be determined using the formula i = C * (dV/dt), where dV/dt is the rate of change of voltage. Substituting the given values, i12 can be calculated as i12 = 10e-6 F * (-104 V/s), resulting in a negative current indicating the direction of flow is opposite to the assumed positive direction. The final answer reflects both the magnitude and sign of the current through the capacitor. The problem has been resolved successfully.

Apr 28, 2009

Gorz

Homework Statement

Calculate the magnitude and sign of i₁₂ which will flow through a capacitor of 10microfarads when:

v₁₂ = +50V, and decreasing at a rate of 10⁴V/s

Homework Equations

Vab=Q/C

The Attempt at a Solution

No idea where to even begin with this question I am affraid. :(

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Apr 28, 2009

Gorz

Solved, please close.

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