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…
-
NCERT Exemplar for Class 7 Science Chapter 5 Acids Bases and Salts
Last modified on:3 years agoReading Time:6MinutesNCERT Exemplar for Class 7 Science Chapter 5 Acids Bases and Salts NCERT Exemplar Books for Class 7 NCERT (National Council of Educational Research and Training) Exemplar Books are supplementary study materials that are designed to provide additional practice and challenge for students in addition to the concepts covered in the…
-
NCERT Exemplar Class 7 Maths Answers
Last modified on:3 years agoReading Time:5MinutesNCERT Exemplar Class 7 Maths Answers NCERT Exemplar Books for Class 7 NCERT (National Council of Educational Research and Training) Exemplar Books are supplementary study materials that are designed to provide additional practice and challenge for students in addition to the concepts covered in the NCERT textbooks. These books are available…
-
NCERT Exemplar Class 7 Maths Unit 11 Exponents and Powers
Last modified on:3 years agoReading Time:5MinutesNCERT Exemplar Class 7 Maths Unit 11 Exponents and Powers NCERT Exemplar Books for Class 7 NCERT (National Council of Educational Research and Training) Exemplar Books are supplementary study materials that are designed to provide additional practice and challenge for students in addition to the concepts covered in the NCERT textbooks.…
