Recent content by Faris A

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    Circuit question: Find size and direction of current at P

    dw I figured out where I was going wrong
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    Circuit question: Find size and direction of current at P

    If 4 = 20I1 + 10I2 is correct then 12 = 10I3 + 10I2 is correct I1 = I2 + I3 4 = 20(I2 + I3) + 10I2 4 = 20I3 + 30I2 12 = 10I3 + 10I2 can be made into 24 = 20I3 + 20I2 Using simultaneous equations: 20 = -10I2 I2 = -2 But is this correct?
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    Circuit question: Find size and direction of current at P

    Homework Statement Homework Equations I = I1 + I2 ... + In R = R1 + R2 ... + Rn 1/R = 1/R1 + 1/R2 ... + 1/Rn The Attempt at a Solution Let I1 = I2 + I3 where I1 is the current on the top wire, I2 the current on the middle wire and I3 the current on the bottom wire. 4 = 10I2 + 20I1 //This...
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    Ammeter from parallel to series, current change

    Thank you for pointing out the resistor, I didn't know very well how they worked and, going to do some research made me realize I waswrong in how I thought they worked. For anyone who also has the same question, try reading this...
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    Ammeter from parallel to series, current change

    Homework Statement In the circuit shown, a student mistakenly connects a perfect ammeter(i.e. One of negligible resistance), in parallel with one of two identical resistors. The ammeter reads 0.40A. What would the reading have been if he had correctly connected the ammeter in series with the...