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demonstrations:5_electricity_and_magnetism:5d_resistance:resistance_change_with_temperature:start
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Resistance Change With Temperature
Description
Demonstrates resistance of a metal varying with temperature
Purpose
To show that the resistance of a metal decreases when cooled; this demonstrates a positive temperature coefficient of resistance.
Apparatus
Dewar flask, liquid nitrogen, light and series wound resistor
Setup
1. Switch on apparatus and since the resistor is in series with the lamp and the 115 V supply for the lamp will not glow at full brightness. 2. Dip resistor into the liquid nitrogen and the light will shine brighter. Updated on: 01/18/16
Notes
Demo room information
| Location | —- |
| Maker | Unknown |
| Current State | Working |
demonstrations/5_electricity_and_magnetism/5d_resistance/resistance_change_with_temperature/start.txt · Last modified: 2019/02/14 23:33 (external edit)
