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 and Reason Questions for Class 11 Physics Chapter 14 Oscillations
Last modified on:4 years agoReading Time:6MinutesAssertion and Reason Questions for Class 11 Physics Chapter 14 Oscillations Directions: (a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true…
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Assertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics
Last modified on:4 years agoReading Time:9MinutesAssertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics Directions: Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and…
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Assertion and Reason Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter
Last modified on:4 years agoReading Time:8MinutesHere we have provided assertion and reason questions for class 11 physics chapter 11 Thermal Properties of Matter. These questions are prepared by subject experts. Students can use these questions for practice. Assertion and Reason Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter Directions: Each of these questions…
