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.
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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…
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Case Study Questions for Class 7 Science Chapter 13 Motion and Time
Last modified on:3 years agoReading Time:7Minutes[Download] Case Study Questions for Class 7 Science Chapter 13 Motion and Time Here we are providing case study or passage-based questions for class 7 science chapter 13 Motion and Time. Case Study/Passage Based Questions Passage-1 The smallest time interval that can be measured with commonly available clocks and watches is…
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Case Study Questions for Class 7 Science Chapter 12 Reproduction in Plants
Last modified on:3 years agoReading Time:6Minutes[Download] Case Study Questions for Class 7 Science Chapter 12 Reproduction in Plants Here we are providing case study or passage-based questions for class 7 science chapter 12 Reproduction in Plants. Case Study/Passage Based Questions Passage-1 Cell which is produced after fusion of gametes is called a zygote. Fusion of male…
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Case Study Questions for Class 7 Science Chapter 11 Transportation in Animals and Plants
Last modified on:3 years agoReading Time:6Minutes[Download] Case Study Questions for Class 7 Science Chapter 11 Transportation in Animals and Plants Here we are providing case study or passage-based questions for class 7 science chapter 11 Transportation in Animals and Plants. Case Study/Passage Based Questions Passage-1 Plants have pipe-like vessels made up of special cells, forming the…
