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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Assertion Reason Question Bank for Physics
Last modified on:3 years agoReading Time:6MinutesAssertion-Reason Questions are the most tedious part of the question paper. These questions of paper require conceptual understanding of the topics. This series will help students to overcome the difficulty faced while answering assertion reasoning type questions. This type of questions consists of two statements; an assertion (statement of fact) and a reason. Reason…
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MCQ Questions for Class 12 Biology Chapter 4 Reproductive Health
Last modified on:4 years agoReading Time:12MinutesQ.1. Tubectomy is a method of sterilization in which(a) nucleus is removed (b) ovaries are removed(c) small part of fallopian tube is removed (d) small part of vast deferens is removed Answer Answer: (c) Q.2. Following statements are given regarding MTP. (i) MTPs are generally advised during first trimester(ii) MTPs are…
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MCQ Questions for Class 12 Biology Chapter 3 Human Reproduction
Last modified on:4 years agoReading Time:11MinutesQ.1. The correct sequence of stages in spermatogenesis are:(a) spermatogonia → spermatid → spermatocyte → sperm(b) spermatocyte → spermatogonia → spermatid → sperm(c) spermatogonia → spermatocyte → spermatid → sperm(d) spermatid → spermatocyte → spermatogonia → sperm Answer Answer: (c) Q.2. The signals of parturition originate from(a) placenta (b) fully developed…
