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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Science and Maths Concepts and Formulas for Class 10 Term 2 Exams
Last modified on:4 years agoReading Time:2MinutesScience and Maths Concepts and Formulas for Class 10 Term 2 Exams How this concept and formula booklet is going to help you in your term 2 exam? If this question comes to your mind, then think of the revision tools missing while taking the exam. The theory part is clear…
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Practice Sheets for CBSE Class 12 Term 2 Examination
Last modified on:4 years agoReading Time:2Minutes Practice Sheets for CBSE Class 12 Term 2 Examination We are providing practice sheets for CBSE Class 12 Term 2 Examinations. The questions are prepared strictly according to the latest syllabus prescribed by CBSE board. Practice sheets for Physics, Chemistry, Maths, Biology and English are available. Practice Sheets CBSE Class…
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MCQ Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Last modified on:4 years agoReading Time:19MinutesQ.1. Which of the following materials is most elastic?(a) Steel (b) Rubber(c) Copper (d) Glass Answer Answer: (a) Young’s modulus of elasticity is highest for steel and Greater the young’s modulus larger is its elasticity. Q.2. The property of a body by virtue of which it tends to regain its original…
