Recent content by Blu3eyes

So, is the current = 200.1 mA and the V=92.046 V.

Homework Statement A galvanometer has a coil resistance of 460 Ohms and a full scale deflection current of 100 uA. What shunt resistance is needed to convert this galvanometer into an ammeter which has a full scale deflection current of 200 mA. What is the resistance of the ammeter when it is...

You're right there. what is cos(45)? And what is the value of that 1/cos(45)

Like you said, pick R2, direction from right to left, R2 would be (+)R2(-) i1, which is clockwise, hits the (-) of R2. On the other hand, i2 hits the (+) of R2. i1 goes the opposite direction with which I chose on R2. i2 goes the same direction with R2. If I was right, it should be i2-i1

I'm still not sure. Does the battery do anything with the +,- here?

The equations make sense to me now. So to figure out the individual currents: I1=i1 I4=i3 I5=i1+i3 I2=i1+i2 I3=i2+i3

Unfortunately, my physics course is taught with electron current. Yes, I was introduced conventional current but it was like 10 minutes lecture. Assignments are done using electron current, lectures are same.

Can I assume that you used conventional current on the resistors? Currents come in with (+) and out with (-)

On the second and third equations, is it: -R2 "+" R2 + R3 - R3 -R5 - R3 "+" R3 +R4 +R5 And I really don't understand how you came up with these equation. 1st equation: where did the extra -R2 and -R5 come from? To finish the loop , shouldn't (R1 + R2 +R5)i1= -E1 +E2 is enough to...

I don't quite get you there:confused:

Here is how I did with junction, loop rules: [PLAIN]http://img101.imageshack.us/img101/7042/78217840.png Junction C: I1 + I2 + I3 +I4 + I5=0 I1 + I2 + I3 +I4 + I2 + I3 = 0 (I5= I2 + I3) I1 +2I2 +2I3 +I4=0 Loop ABCHGF: 8 - 150I1 + 250I2 -12 -350I5=0 -150I1 -100I2 -350I3=4...

Yes, I do have numerical values for resistors and emfs. \epsilon1=8V,\epsilon2=12V,\epsilon3=24V,\epsilon4=16V R1=150\Omega, R2=250\Omega, R3=300\Omega, R4=600\Omega, R5=350\Omega

Sorry I am not familiar with conventional current, but I am kinda getting the idea, (I believe I could do it with electron current.) So, I would say I5= -V2 + I2*R2 - I3*R3 + V3. and then have 3 equations with 3 unknowns I1, I5, and I4. Solve for these first and then come back to the inner...

Can you please be a little more specific? I understand I5=I23=I2 + I3 (series circuit -> same current) But how should I deal with the inner circuit? Emf2 and emf3 are in parallel -> same Voltage V terminal: Vt2 = Vt3 ?

Homework Statement Find the currents [PLAIN]http://img695.imageshack.us/img695/7042/78217840.png Homework Equations Using Kirchhoff's Law, Loop, Junction ruleThe Attempt at a Solution The problem here is the inside circuit .I try to solve it as one emf, one resistance, but honestly I do not...