We discussed the kinetic energy of an object and the related facts. A body can have two types of kinetic energies – Translational kinetic energy and Rotational kinetic energy. In this article, we are going to be more specific. Here, we are to explain the rotational kinetic energy i.e. the kinetic energy due to the … Read more
Electrical components like resistors, capacitors, inductors and their combination offer an electrical impedance to the current flow. Ohm’s law gives an expression for the impedance (resistance) of a resistor in terms of current and voltage. But how to find the impedance of an inductor? In this article, I will explore the formula for the impedance … Read more
Impedance is a frequently used term in electronics and physics. We already have discussed the resistance of a conductor in another article. Impedance is almost the same as resistance. But there are some differences in the presentation of impedance. In this article, we are going to discuss the definition, units and formula for impedance in … Read more
We often hear the two words accuracy and precision during the measurement of a physical quantity in an experiment. Most of the students feel that these two terms have the same meaning. But these are much different from each other. In this article, we are going to discuss the concepts and differences between accuracy and … Read more
Suppose you have two carbon resistors of 2 ohms each, but you need 1 ohm resistance to connect in a circuit. What will you do if there are no other sources to collect a resistor of resistance 1 ohm? Again, what will you do if you need 4 ohms to use? Yes, we need to … Read more
Newton’s laws have brought the revaluation in Physics in 19th century. These laws have important roles in science. But, how many laws does Newton have? The answer is that Sir Isaac Newton introduced many laws in many branches of science. Here, we are interested in laws of motion only. We already have discussed three laws … Read more
The three famous laws of motion given by sir Isaac Newton are the basic laws in classical mechanics. These laws describe the rest and motion states of an object. We already have explained Newton’s first law of motion and its importance. In this article, I’m going to explain Newton’s second law of motion with example … Read more
To find the capacitance of Earth we consider that the Earth is a spherical conductor with radius R and total charge Q. In fact, using this assumption one can determine the capacitance of any planet and satellite like Mercury, Mars, Moon, etc. In this article, we are going to find the capacitance of Earth in … Read more
The term Moment of inertia is used in physics to describe the rotation of an object. The moment of inertia has the same mathematical role in rotational motion as that of the mass in linear motion. But the physical significance of the moment of inertia is different from that of the mass of an object. … Read more
Hypothesis is a predicted theory that satisfies other phenomena but isn’t verified experimentally. Scientist de Broglie gave a such type of theory for the matter particles which plays important roles in Quantum mechanics. In this article, we are going to discuss de Broglie hypothesis for matter waves in quantum mechanics, its explanation and formula and … Read more