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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Frictional Electricity
Last modified on:3 years agoReading Time:10Minutes What is frictional electricity? Frictional electricity, also known as static electricity, is the type of electricity that results from the friction or rubbing of two objects together. When two objects are rubbed against each other, the friction between them can cause the transfer of electrons from one object to the…
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Alternating Current
Last modified on:3 years agoReading Time:24Minutes What is Alternating Current (A.C.)? Alternating Current (AC) is an electrical current that periodically reverses direction in a circuit. Unlike Direct Current (DC), which flows only in one direction, AC constantly changes its polarity and magnitude over time. Explanation: In an AC circuit, electrons periodically switch direction, moving back and…
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Terminal Velocity
Last modified on:3 years agoReading Time:13Minutes What is Terminal Velocity? Terminal velocity is the constant maximum speed reached by an object in free fall or falling through a fluid (such as air or water) when the force of air resistance or fluid resistance becomes equal in magnitude and opposite in direction to the force of gravity…
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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…
