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…
-
Tips on how to use the study-material effectively
Last modified on:5 years agoReading Time:5MinutesRead the following lines carefully to understand how you can derive the maximum benefit out of our study-material available for JEE. (Don’t just read them! Follow them sincerely, and you should have an excellent chance of succeeding at the JEE). 1) Give a general reading to the study-material before coming to…
-
Wave (Revision Notes)
Last modified on:5 years agoReading Time:1MinuteSyllabus Wave motion. Longitudinal and transverse waves, speed of a wave Displacement relation for a progressive wave. Principle of superposition of waves, reflection of waves, Standing waves in strings and organ pipes, fundamental mode and harmonics, Beats, Doppler effect in sound
-
Simple Harmonic Motion (Assignment)
Last modified on:5 years agoReading Time:1Minute
