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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Extra Questions for Class 7 Maths Chapter 2 Fractions and Decimals
Last modified on:3 years agoReading Time:15Minutes Extra Questions for Class 7 Maths Chapter 2 Fractions and Decimals Here we are providing extra questions for CBSE Class 7 Maths Chapter 2 Fractions and Decimals. Related Posts Chapter List Latest Chapter List (2023-24) There is total 13 chapters. Chapter 1 Integers Extra QuestionsChapter 2 Fractions and Decimals Extra…
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Physics Practical Class 12 Viva Questions
Last modified on:3 years agoReading Time:20Minutes [PDF] Physics Practical Class 12 Viva Questions Here you will find viva questions for class 12 physics practicals. Experiment wise viva questions are provided with answers. 2. Measurement of Electromotive Force and Potential Difference 3. Galvanometer, Ammeter and Voltmeter 4. Frequency of AC (Alternating Current) Mains 5. Focal Length of…
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Extra Questions for Class 7 Maths Chapter 1 Integers
Last modified on:3 years agoReading Time:15Minutes Extra Questions for Class 7 Maths Chapter 1 Integers Here we are providing extra questions for CBSE Class 7 Maths Chapter 1 Integers. Chapter List Latest Chapter List (2023-24) There is total 13 chapters. Chapter 1 Integers Extra QuestionsChapter 2 Fractions and Decimals Extra QuestionsChapter 3 Data Handling Extra QuestionsChapter…
