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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Charging of Insulators
Last modified on:4 years agoReading Time:2Minutes 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…
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Charging by Contact
Last modified on:4 years agoReading Time:2Minutes Charging by Contact When a negatively charged ebonite rod is rubbed on a metal object, such as a sphere, some of the excess electrons from the rod are transferred to the sphere. Once the electrons are on the metal sphere, where they can move readily, they repel one another and…
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Charging by Rubbing
Last modified on:4 years agoReading Time:3Minutes Charging by Rubbing The simplest way to charge certain bodies is to rub them against each other. When a glass rod is rubbed with a silk cloth, the glass rod acquires some positive charge and the silk cloth acquires negative charge by the same amount. The explanation of appearance of…
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Important Derivations for Class 12 Physics Chapter 6 Electromagnetic Induction
Last modified on:3 years agoReading Time:8MinutesImportant Derivations for Class 12 Physics Chapter 6 Electromagnetic Induction (1) Derivation of Emf induced in a rod moving in a uniform magnetic field. The magnetic flux linked with the area SPQR is: $$ \phi_R=B A \cos \theta=B l x \cos 0=B l x $$ As the rod PQ is moving…
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MCQ Questions for Class 12 Business Studies Chapter 1 Nature and Significance of Management
Last modified on:3 years agoReading Time:10MinutesMCQ Questions for Class 12 Business Studies Chapter 1 Nature and Significance of Management Here we are providing MCQ Questions for CBSE Class 12 Business Studies Chapter 1 Nature and Significance of Management. You May Also Like: Importance of MCQ Questions for CBSE Class 12 Business Studies Multiple Choice Questions (MCQs)…
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Assertion Reason Questions for Class 7 Maths Chapter 7 Congruence of Triangles
Last modified on:3 years agoReading Time:4Minutes[Download] Assertion Reason Questions for Class 7 Maths Chapter 7 Congruence of Triangles Here we are providing assertion reason questions for CBSE Class 7 Maths Chapter 7 Congruence of Triangles Related Posts What is Assertion Reason Questions for Class 7 Maths? Assertion-reason questions are a type of question format used in…
