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:5 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:5 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:5 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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Case Study Questions for Class 9 Science Chapter 14 Natural Resources
Last modified on:4 years agoReading Time:4MinutesCase Study/Passage Based Questions: Question 1: At present the primary nutrient which limits the agricultural yield is nitrogen (N). Some plants are capable to produce more N2 than they consume. These plants show symbiotic relationship with N2-fixing bacteria such as Rhizobium.These bacteria produce root nodules in leguminous plants and convert atmospheric…
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Case Study Questions for Class 9 Science Chapter 12 Sound
Last modified on:2 years agoReading Time:7Minutes Board CBSE Useful for Class 9 Students Subject Science Chapter Chapter 12 Sound Question Type Case Study Questions No. of Questions 1 With Answers Yes Important Link Class 9 Chapterwise Case Study Case Study Questions for Class 9 Science Chapter 12 Sound Here we are providing case study questions for…
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MCQ Questions for Class 10 Science Chapter 14 Sources of Energy
Last modified on:4 years agoReading Time:7MinutesMCQ Questions for Class 10 Science Chapter 14 Sources of Energy Q.1. Which of the following is the renewable source of energy?(A) natural gas (B) petroleum (C) coal (D) wind Show Answer Answer: (D) Q.2. The energy liberated by charcoal on burning is(A) 30 kJ (B) 33 kJ (C) 35 kJ…
