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The charging and discharging plots are shown on the same graph but plotted in separate runs.

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PHYSICS
5F30.171 RC Time Constant with Data Studio Rating:

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Description: A capacitor, decade resistor box and power supply are placed in series. Data studio displays the charging or discharging of the capacitor with time.
Room:PS F175 Location: see parts Sublocation:
Type: demo Date Added: Condition:
Quantity: Complete: Last updated: 10/12/2005
Purpose: To show the exponential decay or charging of a capacitor.
Safety Issues: Disclaimer (Warning - work in progress - may be incomplete)
Equipment Issues:
Parts:
  • Power Supply: Ealing 15 volt Power supply. Do not use Heath Kit Regulated Power Supply Model IP-2728 Dh3
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  • Capacitor: Same as used in 5C30.20 Shorting a Capacitor demo Ca1
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  • Double Throw switch, charges one way, discharges the other way. Dh1
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  • Resistor: Cenco Decade Resistance Box De3
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  • Data Studio: Use one CI-6503 voltage sensor. 6-3
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  • 5F30.17 RC Time Constant.ds. DA folder
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    Copyright © 2000 Instructions:
  • This will plot the capacitor charging. The Data Studio program starts when the alt button is held down and then the R key is depressed. At the same time close the switch to charge the capacitor. After 20 seconds the run ends. This will plot the capacitor discharging on top of the other plot. Start Data Studio’s second run with the alt button held down and then pressing the R key. At the same time close the switch to short the capacitor.
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    Device   Setting  
    Power Supply   10.1 volts
    Capacitor 9455 microF
    Resistor 318 ohms time constant 3 seconds
    423 ohms 4 seconds
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    1A0 MEASUREMENT
    1A10 Basic Units
    1A10.10 Basic units set-Video Video Encyclopedia: Show a clock with a second sweep, meter & yard sticks, and kilogram and pound mass
    VE01_01
    3_1
    PS F175
    1A10.35 Meter stick - 4 sided Graduated in meters, decimeters, centimeters, & millimeters
    Aa2
    PS F175
    1A10.50 Liter Cube/set
    Aa2
    PS F175
    1A10.510 Meter Cube Meter cube frame, stored dismantled
    Aa2
    PS F175
    1A10.520 Volume Perception Paradox One liter of colored water is poured from a sphere to cylinder. The sphere seems smaller but is of equal volume.
    PS F175
    1A10.60 Avogadro's Number box Black 22.4 liter cube
    Aa2
    PS F175
    1A20 Error and Accuracy
    1A20.10 Gaussian curve - Video Video Encyclopedia: A commercial device for the overhead projector where ball bearings roll through an array of nails into parallel chutes.
    VE16_12
    3_1
    PS F175
    1A20.25A Dice - ordinary
    Aa2
    PS F175
    1A20.25B Dice - overhead
    Aa2
    PS F175
    1A20.25C Dice - polyhedral
    Aa2
    PS F175
    1A20.25D Dice - large foam
    Aa2
    PS F175
    1A30 Coordinate System
    1A30.10A XYZ Coordinate axes Long arrow shafts with label attachments
    top
    7
    PS F175
    1A30.10B XYZ Coordinate axes Zometool version
    Aa3
    PS F175
    1A30.10C XYZ Coordinate axes Medium arrow shafts with dull broadheads
    cabinet
    PS H356
    1A30.30 Polar Coordinates A semi circle is rotated about an axis to demonstrate why integration over theta is from zero to 180 degrees.
    Aa3
    PS F175
    1A30.30 Polar Coordinates
    1A30.40A Chalkboard Globe - Large
    Af6
    PS H156
    1A30.40B Chalkboard Globe - Small
    Af6
    PS H156
    1A40 Vectors
    1A40.001 Vector models, Magnetic Field model, Electric Field model, Electromagnetic Field model Three cardboard vector models. 1) A uniform vector field represented by 9 arrows in 3 by 3 array. 2)Single vector represent by an arrow perpendicular to cardboard. 3) Same as 2) except a circle is drawn around the arrow to represent the curl of the vector
    Aa3
    PS F175
    1A40.10 Vector components (3D)-Video Video Encyclopedia : Metal arrows define a three dimensional coordinate system. An arbitrary vector is viewed in three planes.
    VE01_07
    3_1
    PS F175

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