The electrical conductivity of certain materials changes dramatically as they are cooled to sufficiently low temperatures. In 1911, Heike Kamerlingh-Onnes found that some materials might enter a state where electrical resistance completely disappears. In this workshop, participants will apply Ohm's law and the 4-wire (Kelvin) technique to accurately measure small resistances. They will observe the resistance of a ceramic superconductor material diminish and suddenly disappear completely as the material is cooled down using liquid nitrogen.
Syllabus Links: Physics O-Level: Thermal properties of matter,
The current of electricity, DC, circuits, Physics A-Level: DC circuits,
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|Delivery Type ||Hands-On Workshop|
|Level ||S3,S4, S5, JC1,JC2, ITE,Poly |
|Number of Pax ||10 to 24|
|Duration ||3 hours |
|Timing ||9.30am, 2.30pm|