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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Chapterwise MCQ Question Bank for JEE Main Mathematics with Answers
Last modified on:3 years agoReading Time:3MinutesSpeed and accuracy are essential for success in highly competitive exams such as JEE Main. This can only be achieved via consistent practice and regular revision. For this, we at Physics Gurukul has compiled a series of multiple-choice questions (MCQs) on all JEE concepts. Here we are providing MCQ Question Bank…
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Conceptual Questions Based on Class 11 Physics Projectile Motion
Last modified on:3 years agoReading Time:14MinutesHere we are providing conceptual questions for Class 11 Physics Projectile Motion. Answers are also provided along with questions. So that students can read and understand the question. These questions are prepared by the subject experts. Students can read these conceptual questions based on Projectile Motion for better topic clarity and…
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Conceptual Questions Based on Class 11 Physics Motion in A Straight Line
Last modified on:3 years agoReading Time:23MinutesHere we are providing conceptual questions for Class 11 Physics Motion in A Straight Line. Answers are also provided along with questions. So that students can read and understand the question. These questions are prepared by the subject experts. Students can read these conceptual questions based on Motion in A Straight…
