Please note that the Science Centre exhibitions will be closed on all Mondays except school and public holidays. Lab lessons for schools will continue as per normal on closure days. We thank you for your understanding.


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.

thermal properties of matter; current of electricity; DC circuits; modern physics; temperature and ideal gases

Delivery Type Lecture Demonstration
Level S3, S4, S5, JC1, JC2
Number of Pax 10 to 24
Duration 3 hours
Fees $20


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