Demo History

# Lecture Demonstrations Laboratory

## Demo Request History

Getting info for CourseID: 5763

### PHYS 2020-003: Principles of Physics II

TR 14:00-15:15 Room 205 Richard Lindgren

2020-01-14
• Hi Al, I only want your leaf electroscope. I will bring my own stuff to class, Starts at at 2:00 PM Richard

2020-01-16
• 2 x 4 and watch glass

2020-01-21
• Two parallel plates.charge them up with 90 volts battery,measure voltage across the plates. disconnect batteries. show voltage is still there. two metal spherical conductors as usual, one odd shaped conductor. I bring my own charging kit

2020-01-23

2020-01-28

2020-01-30
• Hi Al, 1) I would like a broken 100 Watt light bulb or something similar to see the filament and measure its resistance. 2) I would like to discharge a small capacitor through an LED to show how the light decays. Thanks Richard

2020-02-04

2020-02-06
• Midterm Exam 1 - no demos

2020-02-11
• Hi AL, 3D sticks to show RHR for Lorentz force
Magnets, power supply, cathode ray tube to show bending of electron beam. Same as your previous set up 1 week ago.
• Magnet collection

2020-02-13

2020-02-17
• I would like a thick copper bar like the one you use for slowing down the magnetic pendulum. I have my own magnet. I will also show a phet video on back emf.
•  video  - Transformers
( I do not need Jacob's ladder. I only want the transformer and lightbulbs.)

2020-02-18
2020-02-25
•  video  - Series LCR Circuit, Resonance
( Hi Al, Series RL circuit as you set it up. Resistors 10 Ohms, Lightbulb, and 110 Ohms Inductor 4.2 mH f =300 Hz to show difference in phases f=1 Hz to show lightbulb flicker Max voltage 4.0 volts iron bar to move inside inductor to show effect Thanks Richard )

2020-02-27

2020-03-03
•  video  - Series LCR Circuit, Resonance
( Hi Al, I will show resonance with the the series RLC circuit. Use L=4.25 mH and C=0.47 uF and the lightbulb so they can see the light get brighter. Thanks Richard )