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…
-
Case Study Questions for Class 7 Science Chapter 10 Respiration in Organisms
Last modified on:3 years agoReading Time:7Minutes[Download] Case Study Questions for Class 7 Science Chapter 10 Respiration in Organisms Here we are providing case study or passage-based questions for class 7 science chapter 10 Respiration in Organisms. Case Study/Passage Based Questions Passage-1 Respiration is a basic characteristics of all living beings. It is an energy releasing reaction.…
-
Case Study Questions for Class 7 Science Chapter 9 Soil
Last modified on:3 years agoReading Time:6Minutes[Download] Case Study Questions for Class 7 Science Chapter 9 Soil Here we are providing case study or passage-based questions for class 7 science chapter 9 Soil. Case Study/Passage Based Questions Passage-1 The chemical substances which are rich from nutrients and used to maintain soil fertility are called fertilizers. They also…
-
Case Study Questions for Class 7 Science Chapter 8 Winds Storms and Cyclones
Last modified on:3 years agoReading Time:7Minutes[Download] Case Study Questions for Class 7 Science Chapter 8 Winds Storms and Cyclones Here we are providing case study or passage-based questions for class 7 science chapter 8 Winds Storms and Cyclones. Case Study/Passage Based Questions Passage-1 Take a soft plastic bottle and fill it with boiling hot water. Empty…
