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 12 Maths Chapter 7 Integrals
Last modified on:3 years agoReading Time:2MinutesCase Study Questions for Class 12 Maths Chapter 7 Integrals Case Study Questions: Question 1: Read the following text and answer the following questions on the basis of the same: (i) Find the value of (ii) Find the value of (iii) Find the value of (iv) Find the value of (v)…
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Trigonometry Formulas for Class 10 Maths
Last modified on:3 years agoReading Time:10MinutesHere we are providing trigonometry formulas for class 10 maths. Students are suggested to remember these formulas so that there won’t be any problem in solving questions related to trigonometry. Trigonometry formulas Class 10 are related to the relationships between the sides and angles of a right-angled triangle. Trigonometric ratios are…
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Math Formulas for Class 11 Chapter 5 Complex Numbers and Quadratic Equations
Last modified on:3 years agoReading Time:7MinutesMath Formulas for Class 11 Chapter 5 Complex Numbers and Quadratic Equations Imaginary Numbers The square root of a negative real number is called imaginary number, e.g. etc. The quantity is an imaginary unit and it is denoted by ‘ i ‘ called iota. Integral Power of IOTA(i) Algebra of Complex…
