find the value of $\displaystyle I_1,I_2,I_3$

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- Aug 2nd 2010, 06:41 AMmastermin346please help me with Kirchhoff's circuit laws
find the value of $\displaystyle I_1,I_2,I_3$

- Aug 2nd 2010, 07:51 AMADARSH
Let $\displaystyle i_1$ be the current from E1 towards R1

and $\displaystyle i_2$ be the current from E2 towards R2

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Use Kirchhoff's loop law

We get

For the loop of potential E1

$\displaystyle 6 = 3i_1 + 4(i_1 + i_2) $

For loop of E2

$\displaystyle 12 = 12i_2 + 4(i_1 + i_2) $

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two equations and two unknowns....

$\displaystyle i_3 = i_1 + i_2 $

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I hope this one is clear than the one I told you there... :-)