Electric charge is a basic property of substances. There are some branches of Physics like Electrostatics, Electromagnetic field and current electricity that deal with electric charge and its motion. Interestingly all substances are neutral in nature. Charges on a substance are created artificially or by natural phenomena. In the article, I’m going explain the Definition, … Read more
Suppose you have calculated a value and the calculator is showing it as 10.333333…. Now, what will you write to express the number? Up to what decimal number will you take the data? To know this, the concept of significant digits is essential. Significant figures or significant digits are very important in measurements to write … Read more
Ohm’s Law of current electricity is one of the popular law in science. This practical verification of Ohm’s law is very important for the practical or project purpose. My students usually ask me to demonstrate an experiment to verify Ohm’s law. In this article, we are going to presents lab-based set up for the verification … Read more
A current-carrying wire placed in an external magnetic field experiences a magnetic force. This is similar to the force between two magnets. Because a current-carrying conductor behaves like a magnet. Also, It will show the same interactions as other magnets when it is placed in front of a magnet. Even if we place two current-carrying … Read more
Logic gates are the basic components of digital circuits that operates following Boolean algebra. These gates have significant roles in construction of integrated circuits (ICs). There are total seven logic gates in digital electronics. OR gate, AND gate and NOT gate are the three basic logic gates among those. NAND gate and NOR gate are … Read more
We have discussed almost everything on electric charges in another article (link is given in the related posts section at below). In this article, we are going to discuss the basic properties of an electric charge. This will be helpful for the students of class 10 and class 12. What is an electric charge? Electric … Read more
Like electric field lines in electric field, there is a concept of magnetic field lines in Magnetic field. In this article, we are going to discuss the definition and the properties of Magnetic field lines and the diagram of magnetic field lines for a bar magnet, solenoid, straight wire and circular wire. What is magnetic … Read more
If we bring a bar magnet near another bar magnet then a force acts between the magnets. Same poles of magnets repel and opposite poles attract each other. This interaction is very similar to electric charges, but not exactly. Now question is, what makes this to happen? The answer is the magnetic force in magnetic … Read more
Scientist Hans Christian Oersted first observed the deflection of a magnetic needle or compass placed near a current-carrying wire. This concludes that a current-carrying wire can produce a magnetic field around it. In another article, we have discussed the Origin, definition, unit and dimension of magnetic field. Since the magnetic field is a vector quantity, … Read more
A static charge produces an electric field around it. Again, when a charge is in motion, it produces a magnetic field around it. But how electromagnetic waves are produced? An accelerating charge produces electromagnetic waves where both the electric field and magnetic field propagate together in an electromagnetic field. Electromagnetic waves are nothing but the … Read more