# Physics

Articles related to class 9, 10, 11, 12 and B.Sc.

## What is trajectory

Introduction to the concept of trajectory A trajectory is a path followed by an object with mass in curvilinear motion (curved path)  as a function of time. Mathematically, It is defined by the equation in x-y coordinates. A famous example would be projectile motion like the ball thrown at an angle or a bullet fired …

## Stable unstable and neutral equilibrium Questions for JEE Examination

What is Equilibrium

A rigid body is supposed to be in equilibrium if there is no change in translational motion and no change in rotational motion
The general conditions for equilibrium are as follows
(i) The total force must be zero
(ii) The total torque about any axis must be zero.
In many cases it is convenient to consider torques about axes through the centre of gravity.

Types of equilibrium
We can divide the equilibrium into two categories With respect to the state of a body
1. Static equilibrium.
2. Dynamic equilibrium.

## Physics of Amusement Park’s

You must have ride Roller coaster or ferris wheel in the amusement park. Its up and down and moving in the circle must have thrilled and fascinated you Today I would like to give a brief details about those machine and how you feel different in those rides. So this article is about the Physics of Amusement Park’s.

The generation of A.C. is cheaper than that of D.C.
A.C. machines are simple , robust and do mot require much attention for their repairs and maintainance during their use.
Wide range of voltages are obtained by the use of transformer.

## Charge Density Formulas and Solved Example

In this article, we would learn about charge density and its formulas and would also solve some problems related to this concept. We encounter electric charge density while calculating electric field from various continuous charge distributions like linear, surface and volume. We also need the concept of charge density while studying current electricity. What is Charge Density? …

## Use of units in physics

Introduction about physics and studying the subject This article is mainly about use of units in physics. But before going further let us first discuss about how to avoid problems that students face while studying physics. When you study physics you must have appropriate skills or you would have to struggle a lot while studying …

## How to solve vector algebra problems in Physics

You will come across vectors in physics problem very frequently.So it is must to know to solve the vector mathematics in short time.And Making sure you have done in correctly.You will find vectors in every module be it mechanics, electrostatics, magentics

## What is a Series Circuit?

What is a Series Circuit? Electricity is one of the purest and the most efficient forms of energy humans have ever produced. Mankind has also fabricated ways to use this energy to perform all kinds of work using the intermediate medium of circuits. As we know, these circuits are hugely classified into 2 types of …