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 and Passage Based Questions for Class 12 Biology Chapter 6 Molecular Basis of Inheritance
Last modified on:4 years agoReading Time:2MinutesCase Study/Passage Based Questions: Question 1: Given below is the diagram of a tRNA molecule. Answer the questions based on the above diagram:(i) Why is charging of tRNA essential in translation?(ii) Where does peptide bond formation occur in a bacterial ribosome?(iii) Name the scientist who called tRNA an adaptor molecule. Answer…
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Mental Maths Question Bank for Class 7
Last modified on:4 years agoReading Time:2MinutesWe are providing Mental Maths Question Bank for Class 7 Studying Studying Students. These questions are prepared by subject experts and includes all chapters of class 7 maths. Each chapter contains more than 50 questions for practice. Practicing these questions will help students to strengthen their understanding of all the important…
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Case Study and Passage Based Questions for Class 12 Biology Chapter 5 Principles of Inheritance and Variation
Last modified on:4 years agoReading Time:2MinutesCase Study/Passage Based Questions: Question 1: Study the flowchart given below and answer the questions that follow. (i) What is a mutagen? Name a physical factor that can be mutagen.(ii) What is point mutation? Give one example.(iii) Mention two causes of frame-shift mutation. Answer Ans. (i) All the physical and chemical…
