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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Assertion and Reason Questions for Class 10 Science Chapter 10 Light-Reflection and Refraction
Last modified on:2 years agoReading Time:9MinutesFollowing questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:(a) Both A and R are true and R is the correct explanation of A.(b) Both A and R are true but R is not the correct explanation of A.(c) A…
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Assertion and Reason Questions for Class 10 Science Chapter 8 How Do Organisms Reproduce
Last modified on:2 years agoReading Time:4MinutesFollowing questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:(a) Both A and R are true and R is the correct explanation of A.(b) Both A and R are true but R is not the correct explanation of A.(c) A…
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Assertion and Reason Questions for Class 10 Science Chapter 7 Control and Coordination
Last modified on:2 years agoReading Time:4MinutesFollowing questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:(a) Both A and R are true and R is the correct explanation of A.(b) Both A and R are true but R is not the correct explanation of A.(c) A…
