How to find out the polarity of an LED
Do you know how to find out the polarity of an LED? It's pretty easy. There are two ways to do that.
First method is to select the shorter pin of the LED. It shows the negative terminal of the LED.
Second method is to check the edge; it disappears on the negative side of the LED.
Research in Usage of Sinhala Computer Keyboard
The Department of Statistics and Computer Science, University of Sri Jayewardenepura is carrying a research project on usage of Sinhala keyboard. This research will help a lot to improve the currently used Sinhala keyboard technology. In our department we have approximately 150 students who are learning IT.
| Year | Students |
|---|---|
| First year | 40 |
| Second year | 40 |
| Third year | 40 |
| Fourth year(Special) | 5 |
We need some responses (approximately 1000) for this research from students who are not doing IT as a subject also. We are much thankful, if you could submit your evaluation form as soon as possible. We value your privacy.
Thank you very much.
Please click the link below to join the survey.
