- #1
Questions999
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I have two problems and as you have seen I've been posting some exercises like this lately because I have 150 exercises to solve and I can't solve only a FEW of them
1. Homework Statement
For the first one :We have the circuit in the figure.We have to find i.If its not clear,the current on the right top says 3i,and the one in the left just i.
http://i.imgur.com/kQdKOnQ.jpg
The second one : This exercise is an alien! Its more difficult than the first one ,can you please give me a hint?http://oi41.tinypic.com/4vsi2p.jpg
KCL,KVL.
For the first one :I don't really know what to do about this one.The current across 10 Ohm is i1,now I write the KCL and I have i=3i+i1 here I have that i1=-2i.I find the voltage across 10 Ohm and it is -20 V.I am thinking about finding the resistance across 3i,so I can find the whole resistance of the whole circuit and then 25/ (Equivalent resistance) but the resistance is negative :/
1. Homework Statement
For the first one :We have the circuit in the figure.We have to find i.If its not clear,the current on the right top says 3i,and the one in the left just i.
http://i.imgur.com/kQdKOnQ.jpg
The second one : This exercise is an alien! Its more difficult than the first one ,can you please give me a hint?http://oi41.tinypic.com/4vsi2p.jpg
Homework Equations
KCL,KVL.
The Attempt at a Solution
For the first one :I don't really know what to do about this one.The current across 10 Ohm is i1,now I write the KCL and I have i=3i+i1 here I have that i1=-2i.I find the voltage across 10 Ohm and it is -20 V.I am thinking about finding the resistance across 3i,so I can find the whole resistance of the whole circuit and then 25/ (Equivalent resistance) but the resistance is negative :/