Table of Contents
Charging of Insulators
Since charge cannot flow through insulators, neither conduction nor induction can be used to charge, insulators, so in order to charge an insulator friction is used. Whenever an insulator is rubbed against a body exchange of electrons takes place between the two. This results in appearance of equal and opposite charges on the insulator and the other body. Thus the insulator is charged.
For example rubbing of plastic with fur, silk with glass causes charging of these things.
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Reynolds Number
Last modified on:3 years agoReading Time:10MinutesWhat is Reynolds Number? The Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to characterize the flow of a fluid (liquid or gas) around an object or through a conduit. It relates the inertial forces to the viscous forces in the fluid and helps determine the type of…
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Physics Formulas for Class 11 Chapter 3 Motion in a Straight Line
Last modified on:3 years agoReading Time:8MinutesHere we are providing important Physics Formulas for Class 11 Students. These formulas are useful for every student studying physics. Learning physics formulas is important for exams because they provide a compact and precise way of expressing the fundamental concepts and laws of physics. They allow you to quickly recall the…
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Case Study Questions for Class 12 Maths Chapter 9 Differential Equations
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 12 Maths Chapter 9 Differential Equations Read the following text and answer the following questions on the basis of the same: The rate of increase in the number of bacteria in a certain bacteria culture is proportional to the number present. Given that the number triples…
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Case Study Questions for Class 12 Maths Chapter 8 Applications of Integrals
Last modified on:3 years agoReading Time:3MinutesCase Study Questions for Class 12 Maths Chapter 8 Applications of Integrals Case Study Questions: Question 1: Read the following text and answer the following questions on the basis of the same: In the figure O (0, 0) is the centre of the circle. The line y = x meets the…
