Recent content by Defagment

Homework Statement Homework Equations a(total) = sqrt( a(tangential)^2 + a(radial)^2 ) The Attempt at a Solution I wrote out equations for the forces in the radial and tangential directions: F(radial) = T - ( mg * cos(θ) ) F(tangential) = mg * sin(θ) I used the equations to find...

Homework Statement A coil with 253 turns of wire, a total resistance of 28 Ohms, and a cross-section area of 0.36m^2 is positioned in a plane perpendicular to the field of a powerful electromagnet. What average current is induced in the coil during the 0.33s that the magnetic field drops...

Thanks for the help! If it isn't too much trouble could you clarify why V3 will force the R1 and R3 branches to be V3? I'm still having trouble understand why V1+V2 won't effect R1 and R3 =\.

Ah I think I get it now...so the V3 will counter-act the V1+V2 in the R1 and R3 branch. So the voltage drop in those two branches will be V1+V2-V3. And the voltage drop in the R2 branch would be V1+V2+V3? :smile:

I've tried that on a sheet of paper (which is how I came up with those 2 equations) but I still don't know what to do. =\ Sorry but I don't really understand this...the potential in the top three branches is V1 + V2? Not sure where to go from there.

Homework Statement Calculate the drop in potential across each resistor: Homework Equations V = IR Kirchhoff's circuit laws The Attempt at a Solution V1 + V2 has a current of I1 that goes through R1 and R3 which are in a parallel circuit. V3 has a current of I2. The two current combine...