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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Reynolds Number
Last modified on:3 years agoReading Time:10MinutesWhat is Reynolds Number? The Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to characterize the flow of a fluid (liquid or gas) around an object or through a conduit. It relates the inertial forces to the viscous forces in the fluid and helps determine the type of…
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CBSE Class 10 Science Chapter 6 Life Processes Unsolved MCQ
Last modified on:3 years agoReading Time:24MinutesCBSE Class 10 Science Chapter 6 Life Processes Unsolved MCQ Q.1. Tick the correct statement.(a) Arteries carry blood away from the heart while veins carry blood towards heart.(b) Veins carry blood away from the heart while arteries carry blood towards heart.(c) Both of them carry blood in the same direction.(d) Either…
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NEET DPP Biology Ch-08 Cell: The Unit of Life
Last modified on:5 years agoReading Time:24Minutes Q.1. The cell organelle involved in glycosylation of protein is(a) ribosome(b) peroxisome(c) endoplasmic reticulum(d) mitochondria Answer Answer: (c) Glycosylation is the process or result of addition of saccharides to proteins and lipids. The process is one of the four principal co-translational and post-translational modification steps in the synthesis of membrane…
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NEET DPP Biology Ch-07 Structural Organisation in Animals
Last modified on:5 years agoReading Time:15MinutesQ.1. The kind of epithelium which forms the inner walls of blood vessels is(a) cuboidal epithelium(b) columnar epithelium(c) ciliated columnar epithelium(d) squamous epithelium Q.2. The cell junctions called tight, adhering and gap junctions are found in(a) connective tissue (b) epithelial tissue(c) neural tissue (d) muscular tissue Q.3. Housefly possesses(a) two pairs…
