Semiconductor Lecture – 1: The article series on Semiconductor materials start from here. In this post, I’m going to give you basic introductory concepts on Semiconductors. You can read the next articles related to this topic by clicking on the Next Article button at the end of this article. Modern Technology is based on Semiconductors. … Read more
Newton’s second law of motion tells that a sufficient amount of net force can move an object from one place to another. For example, If you push an object placed on the floor, it will go away. Similarly, if you pull it, it will come closer to you. In either case, you have to touch … Read more
If we apply a sufficient amount of force on a free object, it will move. We already discussed this concept while explaining Newton’s second law of motion. Now if we want to rotate the free object, two parallel forces should be applied in the opposite direction on two sides of the object. This creates a … Read more
Newton’s laws of motion tell that translational motion is caused by a force. That means if we apply sufficient force on a body, it will move. But how to rotate an object? Can a force produce the rotational motion of a body? The answer will be yes, but not any type of force. For the … Read more
A system needs energy to do work. There are various forms of energy that are used for different purposes. Light energy is one of those. Lives on the Earth are highly dependent on the energy of light in many aspects. Sun is the only natural source of light in Earth. We are using sunlight directly … Read more
If we bring two electric charges close to each other, they exert a force on each other. This force is known as the electrostatic or electric force. It is a natural property of electric charges. Every electric charge or charged body exerts an electric force on another charged body near it. In this article, I’m … Read more
A p-n junction diode works properly in forward bias condition. Because a higher amount of current flows for this biasing condition. On the other hand, a very small amount of current flows through the diode when it is connected to a reverse bias. Again, a higher amount of reverse bias voltage can create a breakdown … Read more
Electrostatics Article – 7 Let a source charge Q produces an electric field E and a positive test charge q is placed at a distance r from the source charge. Coulomb’s law gives the expression for the electrostatic force on the positive charge q due to the source charge Q. Now, if we want to … Read more
Energy is a basic physical property of a system. Physics defines energy as the ability to do work. That means a system or a body can do work only if it has some energy. A system can store energy in many forms like Mechanical energy, Chemical Energy, Electrical energy, etc. Again, energy can be transformed … Read more
When an electric current flows through a resistor, a voltage drops across it. There is a simple way of measuring the voltage across a resistor by using a voltmeter. But, if we need to calculate it from the circuit parameters, then how can we do that? In this article, I’m going to explain the formula … Read more