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demonstrations:4_thermodynamics:4a_thermal_properties_of_matter:sagging_wire:start

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demonstrations:4_thermodynamics:4a_thermal_properties_of_matter:sagging_wire:start [2019/02/14 23:33] – external edit 127.0.0.1demonstrations:4_thermodynamics:4a_thermal_properties_of_matter:sagging_wire:start [2019/04/26 22:46] (current) demoroom
Line 1: Line 1:
 ====== Sagging Wire ====== ====== Sagging Wire ======
  
-{{tag> needs_review untagged unlocated}}+{{tag> lost thermodynamics thermal_expansion joule_heating unlocated}}
  
 <WRAP box right> <WRAP box right>
Line 12: Line 12:
  
 Displays current-created heat and its thermal effect on a wire Displays current-created heat and its thermal effect on a wire
- 
  
 Current flow  Current flow 
 Power from electricity (P = V*V/R)  Power from electricity (P = V*V/R) 
 Heat expansion  Heat expansion 
- 
- 
- 
- 
  
 ===== Purpose ===== ===== Purpose =====
Line 32: Line 27:
  
  
-Nickel wire (currently missing)  +  * Nickel wire (currently missing)  
-200g weight +  200g weight 
-Power supply with two leads +  Power supply with two leads 
-Two stands  +  Two stands  
  
  
Line 42: Line 37:
  
  
-1. Tie the nickel wire between the two stands at a considerable distance (The longer the distance, the more sagging will occur  +  - Tie the nickel wire between the two stands at a considerable distance (The longer the distance, the more sagging will occur  
-2. Place the weight in the center of the span  +  Place the weight in the center of the span  
-3. Attach the alligator clips of the leads to the ends of the wire  +  Attach the alligator clips of the leads to the ends of the wire  
-4. Flick the power supply switch to 12 volts and turn the knob clockwise to its maximum  +  Flick the power supply switch to 12 volts and turn the knob clockwise to its maximum  
-5. The wire will start sagging to a maximum point  +  The wire will start sagging to a maximum point  
-6. Turn the power off and the wire will return to its original position  +  Turn the power off and the wire will return to its original position  
  
 ===== Notes ===== ===== Notes =====
demonstrations/4_thermodynamics/4a_thermal_properties_of_matter/sagging_wire/start.1550187203.txt.gz · Last modified: by 127.0.0.1

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