In this post, you will be taught about something called circuit. Electrons do not work in air to get attracted by positive charged atoms. There is a medium in between which helps link the electrons to the positive charged atoms. The link is what that connects the negative area with the positive area. This is the link or the bridge in between them called as ‘circuit’.

So, circuit is important for the passage of electrons towards the positive charged atoms. The electrons movements, high or slow, depend on the resistance of material. If the circuit is not carefully observed, the number of electrons moving fast at one time can damage the circuit in the process. In our previous post, we learned that there is a strong attraction between the opposite charges and  also we have learned  that  how we can build a circuit between the opposite charges.

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At the University of South Australia the teachers and the students have together designed and built an amazing vehicle. They give it a name as the Trev.

Features of Trev

It comes with the following features:

* It has got two comfortable seats, since more than 90% of urban trips have only one or two people in the car;
* It has enough luggage space for at least two overnight bags;
* It possess 300 kg mass because using a 2.5 tonne vehicle for commuting is ridiculous;

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