- #1
KillerZ
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Homework Statement
In the circuit shown, the same current must flow through all three componets as a result of conservation laws. Using the fact that the total power supplied equal the total power absorbed, show that the voltage across resistor R2 is given by:
[tex]v_{R_{2}} = v_{s}\frac{R_{2}}{R_{1} + R_{2}}[/tex]
Homework Equations
[tex]p = vi = i^{2}R = \frac{v^{2}}{R}[/tex]
The Attempt at a Solution
I said:
[tex]p_{v_{s}} = p_{R_{1}} + p_{R_{2}}[/tex]
because power supplied = power absorbed
[tex]p_{v_{s}} = p_{R_{1}} + p_{R_{2}}[/tex]
But I don't think this is right because it would not simplify right.
[tex]v_{s}i = i^{2}R_{1} + \frac{v_{R_{2}}^{2}}{R_{2}}[/tex]