Recent content by dave pallamino

Hi All, My attempt is a little different, could any of you guys confirm I've gone about this one the right way? Using KCL at V- I=(0-Vx)/Rf Vx=-I*Rf Using KCL at Vx ((Vx-Vout)/R1)+(Vx/R2)=0 (R2*Vx)-(R2*Vout)+(R1*Vx)=0 Vout=(R1+R2/R2)Vx Vout=-(R1+R2/R2)I*Rf Vout=-kI k=(R1+R2/R2)Rf...

In the case of a d.c. generator, if V=E–IaRa when current flows through the armature, why does V = E at no load? Why does the resistance element become disregarded at no load? Is this because the resistance can't cause the voltage to drop at no load?

isn't vl = vp on a delta network?

Hi Guys, I've pretty much got my head around everything up to finding the current for the Thevenin model... -v1 + (j4 x i) + (j6 x i) + v2 = 0 ... -415 + (j4 * I) + (j6 * I) + 415 = 0 but I'm really struggling with how to approach the complex math to achieve i = 41.5 + j41.5 I'm not...

Hi, I am trying to find the current of a circuit using mesh analysis so far I have; My voltages V1 = 415 ∠ 90° or 0 + j415 V2 = 415 ∠ 0° or 415 + j0 impedances Z1 = j4 Z2 = j6 My formula is; -V1+Z1*I+Z2*I+V2=0 Which equates to; -0+j415+j4*I+j6*I+415+j0=0 Could...