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.
-
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…
-
Assertion and Reason Questions for Class 10 Science Chapter 15 Our Environment
Last modified on:4 years agoReading Time:3MinutesAssertion and Reason Questions for Class 10 Science Chapter 15 Our Environment Following questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below: (a) Both ‘A’ and ‘R’ are true and ‘R’ is correct explanation of the Assertion.(b) Both ‘A’ and…
-
Assertion Reason Questions for Class 12 Physics Term 2 Exam
Last modified on:5 years agoReading Time:3Minutes We are providing assertion reason questions for class 12 physics based on term 2 syllabus. There are total 7 chapters included in cbse class 12 physics term 2 exams. Students can practice these questions for concept clarity and scoring better marks in their exam. Class 12 Physics Assertion Reason Questions…
-
Quick Revision Notes for Class 12 Chemistry Term 1 Exam
Last modified on:5 years agoReading Time:1MinuteHere we are providing quick revision notes for class 12 chemistry term 1 examination. This revision notes are prepared strictly according to the latest reduced syllabus. This quick revision notes covers all the chapters included in class 12 chemistry term 1 syllabus. Students can use this revision notes for quick review…
