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…
-
Extra Questions for Class 9 Science Chapter 4 Structure of Atom
Last modified on:4 years agoReading Time:12MinutesExtra Questions for Class 9 Science Chapter 4 Structure of Atom Here we are providing extra questions for class 9 science chapter 4 structure of atom. These questions are important for exam as well. You will be able to score more in your exams by practicing these questions. Very Short Answer…
-
Assertion and Reason Questions for Class 11 Chemistry Chapter 11 The p-Block Elements
Last modified on:5 months agoReading Time:6MinutesAssertion and Reason Questions for Class 11 Chemistry Chapter 11 The p-Block Elements Directions:(a) Assertion and reason both are correct statements and reason is correct explanation for assertion.(b) Assertion and reason both are correct statements but reason is not correct explanation for assertion.(c) Assertion is correct statement but reason is wrong…
-
Assertion and Reason Questions for Class 11 Chemistry Chapter 6 Thermodynamics
Last modified on:5 months agoReading Time:5MinutesAssertion and Reason Questions for Class 11 Chemistry Chapter 6 Thermodynamics Directions: (a) Assertion and reason both are correct statements and reason is correct explanation for assertion.(b) Assertion and reason both are correct statements but reason is not correct explanation for assertion.(c) Assertion is correct statement but reason is wrong statement.(d)…
