## How can two Metallic spheres be charged by induction?

All bodies are neutral in nature. Charged bodies are created either artificially or by natural phenomena like lightning. There are three processes to produce electric charge artificially – Friction, Induction and Conduction. In this article, we will learn how to produce electric charge by induction process. Here, I am going to explain how can two … Read more

## 100 Ohm resistor Color code of 3 4 and 5 bands

100 ohm carbon resistors are very much useful resistors in practical circuits. Hundred ohm resistors are available in 3, 4 and 5 bands. We need to identify it by solving its color code. In this tutorial post, we are going to explain how to read the color code of 100 ohm resistor to calculate its … Read more

## Electricity cost per kWh | US

Every household use to pay money for the electricity. After receiving electric bill we reach to the electricity provider to pay the due amount of the bill. But do you know how is the electric bill calculated? You might say that we pay the bill according to units of electricity that we use. But, do … Read more

## Carbon resistor Color code | how to calculate?

In Physics or Electronics labs you may have seen carbon resistors. This type of resistors is usually painted with three, four, five or six bands of different colors. These bands are the codes from which we can find the value of resistance of a resistor. Now, how to read resistor color code of carbon resistors? … Read more

Solar energy is a trending topic of science in recent time. The non-renewable sources of energy are about to extinct due to its limited storage on the Earth. Therefore, alternative sources of energy are needed to fulfill our daily needs of energy. There are some renewable sources of energy like Solar energy, Wind energy, Geo-thermal … Read more

## Why don’t we see all the colors in a Rainbow?

People have a joy in seeing Rainbow in the fresh sky after a rainstorm. It looks very pleasing to our eyes. I use to find rainbow in the sky every time after the rainfall. But, what causes a Rainbow? Do you know that? I read in Physics book that a Rainbow has seven different colors. … Read more

## Simple Law of Thermodynamics – All four laws

Thermodynamics is a branch of Physics that deals with the thermal state for gas system and other macroscopic systems. There are four laws of Thermodynamics – Zeroth Law, First Law, Second Law and Third Law of Thermodynamics. Sometimes, most of the students feel difficulties to understand these laws. In this post, I am going to … Read more

## Equation of first law of Thermodynamics with example

Thermodynamics is a branch of Physics that deals with the macroscopic variables like Temperature, Pressure, Volume, etc. of a system. These type of systems are known as Thermodynamic systems. There are four laws for these thermodynamic systems – Zeroth Law, First Law, Second Law and Third Law. We already have discussed the Zeroth law, second … Read more

## Rounding off Significant numbers | Significant figures rounding

To get better precision in measurement, we need to rounding off the numbers up to some significant figures. Suppose we have to present a long decimal number 65.3452343….. up to two or three significant figures after the decimal. This may looks straight forward, but it is not the case. The last digit may be the … Read more

## How to Edit College Research Paper? Example & topics

Writing a research paper is a challenging process that requires thorough editing. Every researcher will have the knowledge on their own topic of research, but they need to know how to represent those works in front of academic society. In this article, we are going to share some tips to write and edit college research … Read more