So it’s safe to use a mobile phone in a petrol station. But not wearing nylon. For more on this, read the Straits Times article : http://www.straitstimes.com/asia/se-asia/use-of-mobile-phones-at-petrol-stations-do-not-cause-fires-experts
It’s interesting to note the differing views regarding the explanation for how a thin stream of water can get bent when a charged object is placed near it. It started with these two videos from Veritasium: https://www.youtube.com/watch?v=1Xp_imnO6WE This video then… Continue Reading
Materials Wool PVC pipe or plastic comb String Lighter Procedure Hang the string from an elevated position. Leave the bottom end free. Rub the PVC pipe with wool. This deposits negative charges, or electrons, onto the surface of the PVC… Continue Reading
A thin stream of water can be easily bent using a plastic comb or ruler which was previously rubbed with wool. This demonstrates the attractive forces between unlike charges. Materials Plastic ruler Wool Water from a tap Procedure Turn on… Continue Reading
A Leyden jar is a device used to store static electric charge. It can be used to conduct many experiments with electricity such as creating a spark across a gap.
This question is meant for TA 2B and 2C Physics students. Other than the demonstrations we have tried out during class, could you think of any other way in which static electricity can be observed? Please leave your comments below.… Continue Reading