Mir We already have discussed the Power factor of an electrical circuit and how to calculate the power factor. Unity power factor can be found when an alternating voltage is applied across a pure resistive circuit. In this article, we are going to discuss the concept and formula of Unity Power factor of an electrical circuit. … Read more
Spherical mirror has two types – Concave mirror and Convex mirror. In this article, we’re going to discuss the focal length of a concave mirror. Though, the focal length of both types of mirrors has the same definition and units, but the signs of focal length are different for these two mirrors. Here, we have … Read more
Basic logic gates like OR gate, AND gate and NOT gate are already discuused in another article. Again, we know that universal logic gates like NAND gate and NOR gate can be used to implement all other logic gates including XOR gate and XNOR gate. This article shows the Implemention methods of OR gate, AND … Read more
Companies, institutions and industries require a system that interconnects their Computers or information devices to build up fast and secure communication. Suppose you work in a large institution that has many departments and sections and you need to collect electronic data in a computer of your department from any other department. For this, you need … Read more
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. But the pencil does not bend actually, It appears to be bent because of refraction of light. Now, the question is, why does light bend when it changes medium? This is … Read more
XNOR gate is one of the logic gates available in integrated circuit (IC) form. Its full name is Exclusive NOR gate. It is different from Basic logic gates (OR gate, AND gate and NOT gate) and universal logic gates (NAND gate and NOR gate). In this article, we are going to discuss the logic circuit … 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 be used to represent the Boolean equation both in sum of products (SOP) form and product of sum (POS) form. There are two ways to simplify Boolean … Read more
Boolean algebra is the mathematical reasoning for simplification of binary expressions. It is completely different from the conventional general algebra. Boolean algebra deals with the binary bits only which is the arithmatic method of computers. There are different laws of Boolean algebra that are used to simplify Boolean expressions. In this article, we are going … Read more
NOR gate is one of the universal logic gates other than NAND gate. NOR gate contains an OR gate and a NOT gate in series.This suggests that a NOR gate can give the inverted output of an OR gate. In this article, we are going to discuss the circuit diagram, Boolean expression and truth table … Read more