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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Important Questions for CBSE Board Exams (Chemistry)
Last modified on:5 years agoReading Time:16Minutes This section will be updated regularly. Stay tuned!!! Q.1) Which point defect in crystals does not alter the density of the relevant solid? Answer: Frenkel defect. Q.2) Define the term ‘Tyndall effect’. Answer: The scattering of light by colloidal particles is known as Tyndall effect. Q.3) Why is the froth…
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THE SOLID STATE
Last modified on:5 years agoReading Time:25MinutesPoints to Remember 1. HCP and CCP have equal efficiency i.e., 74% of space is occupied and coordination number is 12. CCP arrangement has FCC lattice. 2. Coordination number is the number of nearest neighbouring points surrounding a particular lattice point (point may be atom, ions or molecules). 3. Packing ef…
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Career Guidance
Last modified on:8 years agoReading Time:5MinutesThere are a lots of career options After 12, for Science stream – Medical (Physics, Chemistry & Biology) and Non – Medical (Mathematics, Physics, Chemistry) Courses for PCMB (Physics, Chemistry, Maths & Biology) Dentist – BDS (5 years) Doctor – BHMS, BAMS, MBBS (5.5 years) Bachelor of Naturopathy & Yogic Science –…
