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    Noobtuber's Avatar
    Noobtuber Posts: 1, Reputation: 1
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    #1

    Apr 1, 2011, 11:02 PM
    Circuit
    Hi , I have got a problem in physics . In the circuit below I need I1,I2,V6 and Solution. Sorry for my english :-) and thanks

    http://i53.tinypic.com/348hk3k.png
    jcaron2's Avatar
    jcaron2 Posts: 986, Reputation: 204
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    #2

    Apr 2, 2011, 06:42 AM
    There is more than one way to do this, so I want to show you in a way that you've already seen.

    One way (which I'm sure you've already seen) is to begin at the right side of the circuit and combine parallel and series combinations of resistors into their single-component equivalents (for example, the 15 and 30-ohm resistors at the right combine in parallel to make one 10-ohm resistor). Once you get the equivalent resistance all the way back to the source, you can begin to solve for the voltages and currents at each node, then "undo" the equivalent combinations, working your way back toward the right, solving for the voltages and currents as you go, until you have all of the answers you need. I'll be happy to help you with this technique if it's the only way you've been taught so far.

    Another way is to use something called Kirchoff's Voltage Law or Kirchoff's Current Law. Are you familiar with those? If not, it will be less confusing to just do it the way you've already been taught.

    Let me know which way would be better, and then I'll help you through it.
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