Processing Tutorial In Sinhala - textSize() | 03

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Fixed Resistors.        Fixed resistors පිළිබඳ සරල සිංහලෙන් දැනගමු! • Resistance is the opposition for the current flow. • Resistance is measured in ohms ( Ω ) • Fixed resistors have a fix value of resistance. • Circuit Symbols:    • Physical appearance of the resistor :  • Resistance can be measured directly  multimeter   . Steps : ´ Set the multimeter to the resistance range ´ Connect the resistor to the multimeter leads ´ Take the reading on the display ´ Resistance of the resistor can also be calculated using the colour bands printed on the surface of the resistor: ´ Steps  ´ Observe the 1 st 3 color bands of the resistor (starting from the opposite end to silver or gold color band) ´ Each colour represents a number. ´ Combining the numbers we can calculate the resistance value. Example 1 : Example 2 : ´ The 4 th color band gives the tolerance ...
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C++ Programming Tutorial 2 - New Line Escape Character

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In this tutorial you will learn everything about using and printing on new lines. There are many methods to use new lines, the most fundermental method is to use  the endl operator at the end of the cout statement. The endl operator make sure that the next cout statement will be printedc on a new line. The endl can be replaced by the use of the new line character \n. the \ is an escape character.Sometimes is essential that we need to escape many lines before the next text is printed on to the screeen  for this in C++ the new line character can be used as required.  \n\n will escape two lines before the next text get printed on the screen. where the use of \n\n\n\n\n would print 5 blank lines before the next text is printed. C++ provides us futher options to simplify the code for printing text on to the screen. In C++ it is possible to print new lines as required inside a single cout ,  this is done by inserting the newline escape character where requ...
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How To Make a 0-12V Variable Power Supply In Sinhala | Part 02

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How To Make a 0-12V Variable Power Supply In Sinhala | Part 02 Expanding the setup to a 0-12V variable power supply. We have already completed the 12V fixed powersupply tutorial vide so if you havent watched it first watch it and continue. By now we have completed the project upto a 12V fixed power supply as our next step we are to make the power supply variable. Additional Components Required: D400 x1 2N3055 x1 100kO variable resistor 1kO  Determining the pins of the d400 transistor is very straight forward but it can be tricky in the case of 2n3055. Refer the pdf for the pin configuration of the D400 transistor: 2N3055 : According to the data sheet the metal casing is the collector of the transistor. The problem is identifying the base and the emitter of the transistor. Steps: Put the multimeter to the diode mode. Connect the probes of the multimeter to the two leads of the transistor. If there is a reading on the multimeter then the positive probe is th...
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