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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Case Study and Passage Based Questions for Class 12 Biology Chapter 1 Reproduction in Organisms
Last modified on:4 years agoReading Time:3MinutesCase Study/Passage Based Questions: Question 1: Given below is the diagram of a ginger rhizome. Answer the questions given below based onthe diagram. (i) Why do vegetative propagules in sugarcane and ginger appear from the nodes?(ii) Name the vegetative propagules in (a) Potato, and (b) Pistia.(iii) How does potato multiply? Answer…
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Case Study and Passage Based Questions for Class 9 Science Chapter 9 Force and Laws of Motion
Last modified on:2 years agoReading Time:6MinutesCase Study/Passage Based Questions: Question 1: Read the following and answer any four questions from (i) to (v) given below : In the figure below the card is flicked with a push. It was observed that the card moves ahead while coin falls in glass. (i) Give reason for the above…
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Case Study and Passage Based Questions for Class 9 Science Chapter 8 Motion
Last modified on:2 years agoReading Time:3MinutesCase Study/Passage Based Questions: Question 1: Read the following paragraph and any four questions from (i) to (v). Distance is the length of the actual path covered by an object, irrespective of its direction of motion. Displacement is the shortest distance between the initial and final positions of an object in…
