09. Variation of resistance with temperature
- 00:31 The ohmmeter must in series with the coil. Why is this?
- 01:13 The temperature must be stable before heating is begun. Why?
- 01:42 Which variable is plotted on each axis? Why does the graph NOT pass through the origin?
bunsen burner; tripod, gauze and stand
250 ml beaker of water or water bath with heating element
thermometer 0 – 1000C
multimeter set on ohm range to measure resistance
Hot water can cause severe burns
Students should wear eye protection and should handle apparatus with tongs.