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 10 Science Chapter 7 Control And Coordination
Last modified on:4 years agoReading Time:23MinutesExtra Questions for Class 10 Science Chapter 7 Control And Coordination Q.1. Define reflex action. Answer: A reflex action or also known as reflex is the sudden action given in response to any activity. These are the involuntary movement. Reflex action does not involve the conscious part of the brain. The…
-
Extra Questions for Class 10 Science Chapter 6 Life Processes
Last modified on:4 years agoReading Time:19Minutes Extra Questions Based On Nutrition: Q.1. State the photosynthetic reaction and where does it occur? Answer: The process of photosynthesis occurs in green parts of a plant, basically leaves. The presence of chlorophyll (green pigment) is necessary for photosynthesis to occur and chlorophyll is present in leaves as green dots.…
