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.
-
Electric Field of a Line Charge
Last modified on:3 years agoReading Time:3MinutesElectric Field of a Line Charge Positive charge q is distributed uniformly along a line with length 2a, lying along the y-axis between y=–a and y=+a. We are here interested in finding the electric field at point P on the x-axis. Derivation of electric field due to a line charge: Thus,…
-
Electric Field Lines
Last modified on:3 years agoReading Time:5MinutesElectric Field Lines Electric charges create an electric field in the space surrounding them. It is useful to have a kind of “map” that gives the direction and indicates the strength of the field at various places. Field lines, a concept introduced by Michael Faraday, provide us with an easy way…
-
Human Ear
Last modified on:4 years agoReading Time:3MinutesHuman Ear The human ear, like that of other mammals, contains sense organs that serve two quite different functions: that of hearing and that of head and eye movements. Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear. How Human Ear Works? Different sounds produced in our surroundings are collected by…
-
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…
-
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
-
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…
