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…
-
Important Questions Class 12 Chemistry Chapter 7 The p-Block Elements 1 Mark Questions
Last modified on:5 years agoReading Time:19Minutes1. Write the elements of group 15? Ans. The elements of group 15 are Nitrogen (N), Phosphorous (P) , Arsenic (As) , Antimony (Sb) and Bismuth (Bi). 2. Write chemical name & formulae of a) Chile saltpetre b) Indian saltpetre Ans. (a) Chile saltpetre – Sodium nitrate – (b) Indian saltpetre –…
-
Lakhmir Singh Class 10 Chemistry Solutions Chapter 1 – Chemical Reactions and Equations
Last modified on:5 years agoReading Time:130MinutesAll questions and answers from the Lakhmir Singh & Manjit Kaur Chemistry Book of Class 10 Science Chapter 1 are provided here for you for free. All Lakhmir Singh and Manjit Kaur Chemistry Solutions for class Class 10 Science are prepared by experts and are 100% accurate. Page no: 18 In-text…
-
Lakhmir Singh Class 10 Biology Solutions Chapter 2 – Control And Coordination
Last modified on:5 years agoReading Time:111MinutesThe text book of Lakhmir Singh And Manjit Kaur for Class 10 Biology gives the students a detailed picture about each and every chapter. This is the best book for your class 10 science preparation. We are providing you the detailed solutions for Chapter 2 Control and Coordination for free. Don’t forget to check out…
