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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Assertion Reason Questions for Biology Chapter 25 Human Reproduction
Last modified on:5 years agoReading Time:15MinutesDirections: In the following questions, a statement of assertion is followed by a statement of reason.Mark the correct choice as:(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.(c)…
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MCQ Questions for Class 10 Maths with Answers Chapter 3 Pair of Linear Equations in Two Variables
Last modified on:3 years agoReading Time:8MinutesMCQ Questions for Class 10 Maths with Answers Chapter 3 Pair of Linear Equations in Two Variables with Answers These MCQ Questions for Class 10 Maths Chapter 3 Pair of Linear Equation in Two Variables are prepared according to the latest pattern. It is very helpful for students who wants to…
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Extra Questions for Class 10 Science Chapter 2 Acids, Bases and Salts
Last modified on:5 years agoReading Time:15MinutesExtra Questions On Class 10 Science Chapter 2 Acids, Bases and Salts Q.1. The pH of a sample of vegetable soup was found to be 6.5. How is this soup likely to taste? Answer Answer. The taste will be slightly sour as it is weakly acidic. Q.2. Which bases are called…
