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.
-
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…
-
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…
-
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…
-
Human Eye & Colourful World (Numerical with Answer)
Last modified on:5 months agoReading Time:14MinutesHere we are providing numerical assignment on class 10 science chapter human eye and colourful world. Answers are also provided for reference. Numerical Problems Based on Human Eye and Colourful World Q.1. If the concave lens of focal length (f = 1.5m) used to restore the proper vision, then what is…
-
CBSE Class 10 Human Eye & Colourful World NCERT Solution
Last modified on:5 years agoReading Time:11Minutes Human Eye & Colourful World (NCERT solution) Q. 1. What is meant by power of accommodation of the eye? Ans. The ability of the eye lens to adjust its focal length is called power of accommodation of the eye. This enables us to see distant objects and nearby object clearly.…
-
Questions on Kinematics
Last modified on:5 years agoReading Time:24MinutesQ1. A man travels a distance of 1.5 m towards East, then 2.0 m towards South and finally 4.5 m towards East. i. What is the total distance travelled? ii. What is his resultant displacement? Q2. A scooterist covers a distance of 3 kilometers in 5 minutes. Calculate his speed in…
