# Month: April 2021

## QUESTION BASED ON COULOMB’S LAW

ELECTROSTATICS exercise # 1 Question based on coulomb’s law 1 An electron at rest has a charge of 1.6 × 10–19 C. It starts moving with a velocity v = c/2, where c is the speed of light, then the new charge on it is – (1) 1.6 × 10–19 Coulomb (2) 1.6 × 10–19 …

## Continuous charge Distribution & charge Density

Continuous Charge Distribution: Any charge which covers a space with dimensions much less than its distance away from an observation point can be considered a point charge. A system of closely spaced charges is said to form a continuous charge distribution. It is useful to consider the density of a charge distribution as we do …

## Principle of Superposition :

This principle states that if a number of forces are acting on a single charged particle then the       total force on the given charge is the vector sum of all the forces exerted on it by other charges.

## COULOMB’S LAW

Coulomb’s Law – Force between two point electric charges: The electrostatic force of interaction (attraction or repulsion) between two point electric charges is directly proportional to the product of the charges, inversely proportional to the square of the distance between them and acts along the line joining the two charges. Strictly speaking, Coulomb’s law applies …

## Methods of charging

3. Electrostatic induction If a charged body is brought near a neutral  body, the charged body will attract opposite charge and repel similar charge present in the neutral body. As a result of this one side of the neutral body becomes negative while the other positive, this process is called ‘electrostatic induction’.

## PROPERTY OF CHARGE

Charge is a scalar Quantity. Charge is conserved. Charge can not exist without of mass. Charge can not exist without mass though mass can exist without charge. Charge is transferable. If a charged body is put in contact with an another body, then charge can be transfered to another body. Charge is always associated with …

## ELECTROSTATICS

in this branch of science we can study about rest charge. If charge at rest it give five property Electric field, Force, potential, capacitance, and potential energy.

## विमा

विमा:- किसी व्युत्पन्न भौतिक राषि को मूल राषि मे व्यक्त करने के लिए मूल मात्रको [ M L T A K Mol Cd] के ऊपर घात लगाकर एक सूत्र बनाते है इस बनने वाले सूत्र को विमा कहते है। या विमीय सूत्र कहतंे है। इसे बडे कोष्ठ कमे लिखते है। जब किसी व्युत्पन्न भौतिक राषि …

## त्रुटि

जब किसी भौतिक राषि का मापन किया जाता है तो इसके मापन मे कुछ अनिष्चित रह जाता है। इस अनिष्चिता के मान का अन्तर त्रुटि कहलाती है।त्रुटि मुख्यतः तीन प्रकार की होती है।1 क्रमबद्ध त्रुटि 2 यादृच्छिक त्रुटि 3 स्थूल त्रुटि 1. क्रमबद्ध त्रुटि:- किसी भौतिक राषि के मापन मे वे त्रुटिया जिनके बीच का …

## मापन, मात्रक , विमाएँ

भौतिक राषि:-प्रकृति मे जो कुछ हमे दिखाता है। जिसे हम छू सकते है। जिसे हम महसूस कर सकते है। अथवा वे राषियाॅ वस्तुए जिन्है मापा या तौला जा सकता है भौतिकराशिया कहलाती है। ये दो प्रकार की होती है।मूल भौतिक राषि:- वे राषिया जिन्है व्यक्त करने के लिए किसी अन्य भौतिक राषि की आवष्यकता नही …