Physics

Introduction

A screw pitch gauge is a precision instrument. It is used for measuring diameter of circular objects mostly wires, with an accuracy of 0.001cm. It consists of a hollow cylinder mounted on a U frame. The hollow cylinder leads to a ratchet which is meant for fine adjustment. The U frame consists of a flat end known as stud and a screw on the other side. This screw can be moved inside the nut by fitted in the U frame by rotating the hollow cylinder called the thimble. This is called the main scale. The hollow cylinder or the thimble is graduated into 50 or 100 equal parts. This is called the circular scale.

We know that electric field inside a conductor is zero and any charge the conductor may carry shall be distributed on the surface of the conductor. For our discussion consider a conductor carrying charge on its surface again consider a small surface element ds over which we can consider surface charge density ? to be approximately constant.

Alpha Symbol Physics In this article, we will look into the meaning of the alpha symbol in physics. In physics and other scientific notations, various Greek alphabets are used to represent various physical quantities. Let us now have a look at what does Greek symbol alpha mean in physics. Alpha symbol Lowercase Alpha $\alpha$ Symbol

Welcome to our webpage dedicated to providing Class 11 physics students with sample papers and solutions. On this page, you will find a variety of questions and answers, all prepared according to the CBSE Class 11 physics syllabus. PDF download of this sample paper is also available. This website offers a sample paper for class

Magnitude in physics is a measure of the strength or intensity of a physical quantity. It is used to compare various quantities to one another and is frequently expressed as a numerical value. Force, velocity, and energy are a few examples of physical quantities that can be measured by magnitude. What is magnitude in physics?