# Important Laws of Physics – Free General Science EBook | Railway & SSC Exams

General Science section is one of the most important sections of SSC & Railway Exams. Therefore, we regularly provide you with Free Science Study notes through Blogs and E-books for your preparation. In this section, questions related to the Laws of Physics have been asked. Hence it becomes very important for all the candidates to be aware of all the Basic Laws of Physics and their explanation.

In all the Government exams like SSC and Railway Exams, Every mark counts and even 1 mark can be the difference between success and failure.

Therefore, to help you get these important marks we have created a Free General Science Study notes E-book on Basic Laws of Physics.

The simplified explanations of All the Important Laws of Physics are given in the following pages
of this Free E-book – http://bit.ly/Physics-Laws

## 2. Laws of Physics E-Book – Sneak Peek

### 2.1 Law of conservation of mass

Law of conservation of mass states that for any given closed system, mass can neither be created nor be destroyed, over the time it can be conserved. It is also known as the principle of mass conservation.

### 2.2 Coulomb’s law

According to the Coulombs law, the force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. It acts along the line joining the two charges considered to be point charges.

### 2.3 Ohm’s law

According to Ohm’s law, the current flowing through a conductor is directly proportional to the potential difference applied across its ends, provided the temperature and other physical conditions remain unchanged.