In another article, we discussed the refractive index of a material and most of the facts related to refractive index. The value of the index of refraction is different for different materials. So, it is better to a rule to calculate the refractive index of different materials. In this article, we’re going to discuss how … Read more
If you emerge a straight pencil into a glass of water, you can see the part of the pencil inside the water is bent. The pencil does not bend. It appears to be bent because the light bends while passing from one medium to another medium. Now, the question is, why does light bend when … Read more
XNOR gate is another logical gate that is available in integrated circuit (IC) form. In other articles, we discussed that NAND gate and XOR gate are also available in IC form. Therefore, these types of logic gates are very much useful in advanced digital electronics. Basic logic gates (OR gate, AND gate and NOT gate), … Read more
Karnaugh map is a very useful tool for simplification of Boolean expression in digital electronics. The other name of Karnaugh map is K-map or K map. It can represent the Boolean equation both in sum of products (SOP) form and product of sum (POS) form. There are two ways to simplify Boolean expressions. One is … Read more
Boolean algebra is a very useful method for the simplification of binary expressions. There is no connection between known general algebra and Boolean algebra. Boolean algebra deals with the binary bits only. There are different laws of Boolean algebra to simplify Boolean expressions. In this article, we are going to discuss all rules of Boolean … Read more
NOR gate is one of the universal logic gates along with the NAND gate. Do you know how to make NOR gate? How does NOR gate work? One can make a NOR gate by connecting an OR gate and a NOT gate in series. So, the main work of a NOR gate is to give … Read more
The NAND gate is the most important logic gate in digital electronics. It is one of the universal logic gates. Because other logical gates can be designed by using NAND gates only. This gate is available in IC form. IC7400 is a popular IC that consists of 4 NAND gates. In other articles, XOR gate, … Read more
In another article, we discussed the tension of a string or rope. We found that the tension of a string is a kind of force. Again, we know that a body can move due to the application of external force. So, the work done on a body depends on the force acting on it. Then, … Read more
If you drop a ball from the roof of your house, the ball will fall under gravitational force. Now, attach the ball to an end of a string and fix the other end of the string somewhere on the roof. Then drop the ball from the roof again. This time the ball will be hanging … Read more
A Capacitor is an important component in an electrical circuit. We have discussed different types of capacitors in other articles. Like other components (resistors, inductors), a capacitor also offers opposition to the current flow (Direct current only) through it. That means it generates impedance. Ohm’s law tells us that an impedance causes a voltage drop. … Read more
