I have been working on this for 2 days Ive tried to do it in polar form and rectangular The loop equation is VmCos(wt-0)=RImSin(wt)+wLImCos(wt)
When i add them up of course the equal Vm but the problem ask to sovle for VLmax and Vrmax I can use Vin VR + VL but how do u do it with The first loop I presented the givens are R 1000 ohms F=2000hz Vmax =10v L=100mH
So far i think its Vm/IM=RI+wl
Vrmax6.2v Vlmax 7.8v Imax 6.2ma

 

davonecuts,

I have been working on this for 2 days Ive tried to do it in polar form and rectangular The loop equation is VmCos(wt-0)=RImSin(wt)+wLImCos(wt)
When i add them up of course the equal Vm but the problem ask to sovle for VLmax and Vrmax I can use Vin VR + VL but how do u do it with The first loop I presented the givens are R 1000 ohms F=2000hz Vmax =10v L=100mH
So far i think its Vm/IM=RI+wl
Vrmax6.2v Vlmax 7.8v Imax 6.2ma

Looks to me like you got the right answers. What is the problem?

ω=2∏f = 12566, Xl = jωL = j1257, Z = 1000 + j1257 = 1606/_51.5 , Im = 10/(1606/_51.5) =0.00623/_-51.5 , Vrmax = 1000*Im = 6.23/_-51.5 volts, Vlmax = j1257*Im = 7.83/_38.5 .

Ratch

 

The answers didnt add up to multisim values because they were in RMS. You could also calculate the values in Polar or Rectangular form but they wont work with out a degree or imaginary number.The question wanted the answers with out the phase diff so you would just use Sqrt of x ^2 + y^2 . Duhhh