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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Conductors and Insulators
Last modified on:4 years agoReading Time:2MinutesConductors and Insulators Solids are mainly classified into two groups, conductors and insulators. In conductors, electric charges are free to move from one place to another, whereas in insulators they are tightly bound to their respective atoms. In an uncharged body, there are equal number of positive and negative charges. The…
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Electric Field Due to a Point Charge
Last modified on:3 years agoReading Time:1MinuteElectric Field Due to a Point Charge The electric field produced by a point charge q can be obtained in general terms from Coulomb’s law.First note that the magnitude of the force exerted by the charge q on a test charge q0 is then divide this value by q0 to obtain…
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Electric Field Due to a Charged Ring
Last modified on:3 years agoReading Time:4MinutesElectric Field Due to a Charged Ring A conducting ring of radius R has a total charge q uniformly distributed over its circumference. We are interested in finding the electric field at point P that lies on the axis of the ring at a distance x from its centre. We divide…
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Case Study Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter
Last modified on:3 years agoReading Time:5MinutesCase Study Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter Case Study Questions: Question 1: Specific Heat Capacity Heat capacity of a substance is defined as where ΔQ is the amount of heat supplied to the substance to change its temperature from T to T + ΔT. Specific…
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Case Study Questions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids
Last modified on:3 years agoReading Time:6MinutesCase Study Questions: Question 1: The property due to which the free surface of liquid tends to have minimum surface area and behaves like a stretched membrane is called surface tension. It is a force per unit length acting in the plane of interface between the liquid and the bounding surface…
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Case Study Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Last modified on:3 years agoReading Time:4MinutesCase Study Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids Case Study Questions: Question 1: The graph shown below shows qualitatively the relation between the stress and the strain as the deformation gradually increases. Within Hooke’s limit for a certain region stress and strain relation is linear. Beyond…
