### Lab 10: Second Order Circuits

Lab 10 will come from the published version of the lab manual.

##### Suggested Pre-Lab Activities

Completing the following activities before attending lab will save you time during the lab session.

- none

##### Lab Manual Errata

The following are known errors in the lab manual corresponding to lab 10.

- Page 127 should say “v(t)/R + i(t)
**+**Cdv(t)/d(t) = 0″ - Page 128 should say “Qualitatively sketch the output (voltage measured across the
**load resistor**) waveform…” - Page 131 should say “Qualitatively sketch the output waveform that results when the input drops from
**10 V**to 0 V.” - Page 137 should say “18. (b) vC(0) (initial voltage drop over the
**capacitor**).” - Page 138 should say “25. (b) vC(0) (initial voltage drop over the
**capacitor**).” - Page 139 should say “32. (b) vC(0) (initial voltage drop over the
**capacitor**).”

##### Lab Modifications

The following parts of lab 10 have been modified from the published version of the lab manual.

- none

##### Notes

**You are going to need help with the homework, particularly questions 18/25/32.** This is NOT a regular parallel RLC because of the parasitic resistance of the inductor and the load resistor. You will need to derive KCL/KVL equations to determine the equation from which to find i'(0). This is not a cookie-cutter circuit and will not be using cookie-cutter equations. Talk to me if you’re not sure what’s going on!

##### Resources

Watch/read the following resources prior to attending this lab. This information will teach you how to use lab equipment and provide suggestions and technical tips for successfully completing the lab.

- Textbook: Sections 7.2 and 7.3
- Video: Breadboard
- Video: Function generator
- Video: Oscilloscope
- Video: Tabletop multimeter
- Video: LRC meter
- Website: Digi-Key 4-band resistor color code calculator
- Infographic: Using a potentiometer as a variable resistor
- Infographic: Connecting common circuit components to a breadboard
- Infographic: Using equipment with Earth ground