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…
-
Revision Notes for Class 12 Business Studies Chapter 2 Principles of Management
Last modified on:3 years agoReading Time:27MinutesRevision Notes for Class 12 Business Studies Chapter 2 Principles of Management Here we are providing Revision Notes for Class 12 Business Studies Chapter 2 Principles of Management. These are the important points related to the chapter. Students should remember these points. CONCEPT OF PRINCIPLES OF MANAGEMENT The principles of management…
-
Revision Notes for Class 12 Business Studies Chapter 1 Nature and Significance of Management
Last modified on:3 years agoReading Time:27MinutesRevision Notes for Class 12 Business Studies Chapter 1 Nature and Significance of Management Here we are providing Revision Notes for Class 12 Business Studies Chapter 1 Nature and Significance of Management. These are the important points related to the chapter. Students should remember these points. CONCEPT OF MANAGEMENT Management is…
-
Numerical Problems Based on Class 11 Physics Friction
Last modified on:3 years agoReading Time:6MinutesFriction Whenever a body moves or tends to move over the surface of another body, a force comes into play which acts parallel to the surface of contact and opposes the relative motion. This opposing force is called friction. Angle of friction The angle of friction may be defined as the…
