# Homework Help: Sinusoids and Phasors (Micro-Cap)

1. Jun 26, 2012

### EmBista

1. The problem statement, all variables and given/known data

Hi,

I've been trying to figure this out for a while, its really annoying because it should be straight forward but its troubling me a lot.

The exercise is a practical on Sinusoids and Phasors. We are given the circuit and have to first calculate the voltage and current for each component and then 'measure' using Micro-Cap.

3. The attempt at a solution

I calculated these to be:
V1: 2.360∠3.68°V ____ I1: 1.18∠3.68°mA
V2: 1.878∠-86.32°V __ I2: 1.18∠3.68°mA
V3: 3.030∠34.51°V ___ I3: 1.01∠34.51°mA
V4: 3.030∠34.51°V ___ I4: 0.61∠-55.18°mA

Can anyone confirm these?

Also, does anyone have any experience with micro-cap?
I am using version 10.0.8 and the results from the analysis on microcap don't make sense at all. So I have a few questions on how to set this up.

Thank you
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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2. Jun 27, 2012

### Staff: Mentor

Your calculated values appear to be fine.

I've never used MicroCap, but I assume it's a Spice engine of some form; I use LTspice when I need a simulation. In what way do the results in MicroCap not make sense? Can you be more specific?

3. Jun 29, 2012

### EmBista

In MicroCap we were supposed to draw the circuit and measure the voltages and estimate the phase angle.

I did this correctly, however for the voltage across the capacitor I calculated it to be 1.878∠-86.32°V but when I look at the graph and I calculate the voltage drop (2.64-3.049=-0.409)

I must be doing this wrong?

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