- A lamp in series with a coil glows dimly when the coil is at room temperature.
- Put the coil in a container of liquid nitrogen and the lamp glows brightly.
(use 6 V/0.15 A bulb)
(set voltage to 12 V, current limit to 150 mA)
| 5D20.10 RESISTANCE AT LOW TEMPERATURE |
|
(use 6 V/0.15 A bulb) (set voltage to 12 V, current limit to 150 mA) |