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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Extra Questions For Class 10 Maths Chapter 1 Real Numbers Based On The Fundamental Theorem of Arithmetic
Last modified on:3 years agoReading Time:6MinutesEvery composite number can be expressed (factorised) as a product of primes, and this factorisation is unique, apart from the order in which the prime factors occur. The prime factorisation of a natural number is unique, except for the order of its factors. ⊕ Property of HCF and LCM of two…
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Extra Questions For Class 10 Maths Chapter 1 Real Numbers Based On Rational Numbers and Their Decimal Expansions
Last modified on:3 years agoReading Time:1MinuteExtra Questions On Euclid’s Division Lemma Question:Without actually performing the long division, state whether the following rational numbers willhave a terminating decimal expansion or a non-terminating repeating decimal expansion: (i) 13 / 3125 (ii) 129 / 225775 (iii) 77 / 210 (iv) 14587 / 1250 (v) 833 / 225572 Related Posts
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Extra Questions For Class 10 Maths Chapter 1 Real Numbers Based On Irrationality of Numbers
Last modified on:3 years agoReading Time:3MinutesExtra Questions On Irrationality of Numbers Question: Prove that √5 is an irrational number. Solution: Let √5 is a rational number then we have √5=p/q, where p and q are co-primes. ⇒ p =√5q Squaring both sides, we get p2=5q2 ⇒ p2 is divisible by 5 ⇒ p is also divisible by…
