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…
-
MCQ Questions for Class 6 Science Chapter 2 Components of Food
Last modified on:3 years agoReading Time:4MinutesMCQ Questions for Class 6 Science Chapter 2 Components of Food Here we are providing MCQ Questions for Class 6 Science Chapter 2 Components of Food. Q.1 The food components needed by our body are called(A) ingredients(B) nutrients(C) fragments(D) ornaments ➤ Show Answer Answer: (B) Q.2 Carbohydrates can be tested by(A)…
-
MCQ Questions for Class 6 Science Chapter 1 Food – Where Does It Come From
Last modified on:3 years agoReading Time:4MinutesMCQ Questions for Class 6 Science Chapter 1 Food – Where Does It Come From Here we are providing MCQ Questions for Class 6 Science Chapter 1 Food – Where Does It Come From Q.1 Which part of a mustard plant is edible?(A) Seeds and flowers(B) Leaves and flowers(C) Seeds and…
-
Extra Questions for Class 9 Science Chapter 12 Sound
Last modified on:3 years agoReading Time:10MinutesExtra Questions for Class 9 Science Chapter 12 Sound Very Short Answer Type Show Answer 1. Sound is a form of energy or the medium by which we can communicate with each other. 2. The to and fro motion of an object is called vibration. 3. Voice box or larynx 4.…
