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 Reason Questions for Class 7 Maths Chapter 3 Data Handling
Last modified on:3 years agoReading Time:3Minutes[Download] Assertion Reason Questions for Class 7 Maths Chapter 3 Data Handling Here we are providing assertion reason questions for CBSE Class 7 Maths Chapter 3 Data Handling. Related Posts What is Assertion Reason Questions for Class 7 Maths? Assertion-reason questions are a type of question format used in mathematics to…
-
Assertion Reason Questions for Class 7 Maths Chapter 2 Fractions and Decimals
Last modified on:3 years agoReading Time:4Minutes[Download] Assertion Reason Questions for Class 7 Maths Chapter 2 Fractions and Decimals Here we are providing assertion reason questions for CBSE Class 7 Maths Chapter 2 Fractions and Decimals. Related Posts What is Assertion Reason Questions for Class 7 Maths? Assertion-reason questions are a type of question format used in…
-
Assertion Reason Questions for Class 7 Maths Chapter 1 Integers
Last modified on:3 years agoReading Time:3Minutes[Download] Assertion Reason Questions for Class 7 Maths Chapter 1 Integers Here we are providing assertion reason questions for CBSE Class 7 Maths Chapter 1 Integers. What is Assertion Reason Questions for Class 7 Maths? Assertion-reason questions are a type of question format used in mathematics to assess students’ understanding and…
