by Alka Verma | Jun 7, 2016 | General
In the previous blog we learnt about a simple circuit. We connected 2 cells with a bulb/LED and the bulb glowed. A Simple Circuit What if we have to turn off the bulb? We will have to remove one of the cell or one of the wire. We could also remove the bulb from the...
by Alka Verma | May 30, 2016 | General
We have learnt about the basic circuit in the previous blog. Now, we will apply that knowledge to understand the phenomenon of conductors and insulators. The following activity will illustrate that current passes through conductors and not through insulators:- Collect...
by Alka Verma | May 23, 2016 | General
When electrons start moving in one direction, we say that electric current is flowing. Flow of electrons constitutes current. Water is a good example to explain current. When glaciers melt at the mountains, water starts flowing in one direction forming river....
by Alka Verma | May 14, 2016 | General
Batteries are like piggy banks. Cell is the basic unit of energy. Two or more cells connected together is called battery. They are our energy storehouse. A Battery converts chemical energy into electrical energy. They are mobile or portable source of power. They are...
by Alka Verma | May 6, 2016 | General
Here are some most amazing and exciting tools. Soldering Iron : It is a hand tool used for soldering the components. It is an electrical instrument used for making good joints. Like the element of the heater or Electric press, there is an element part which gets...
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