Class 12 physics question bank
Download an excellent collection of questions with answers for CBSE Class 12 Physics
Question Bank in Physics Class XII
The collection will also be helpful for students of other syllabuses.
The file consists of syllabus, key points, collection of very short Answer (1 mark), Short answer type question – solved (2 marks), short answers (3 marks), Long answers (5 marks), Solved numericals and 3 sample papers.
The contents are arranged chapter-wise. Any student will find this a boon for easy preparation and to score better marks in Physics.
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Categories: Articles, CBSE Physics, Downloads, Education2Home, Lecture Notes, Model Question Papers, Numerical Tags: Ask an Expert, Central Board of Secondary Education, Education, Equations of motion, India, Kendriya Vidyalaya, Personal and Class Pages, Physics, Student
CBSE Physics Solved Board Question Papers 2008, 2009, 2010 & 2011 – All versions
Download CBSE Physics Solved Board Question Papers 2008, 2009, 2010 & 2011 – All versions (Delhi, Outside Delhi & Foreign)
The question Papers are in PDF format, all question papers with solution in a single file. So, it may take some time for the download to finish.
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Categories: CBSE Physics, Downloads, Model Question Papers, Physics Links, Question Bank, Sample Papers, Solved Problems Tags: Central Board of Secondary Education, Delhi, Education, Equations of motion, Kendriya Vidyalaya, Ohm's law, Physics, Tests
Quick Revision for Class X Physics SA1
CHAPTER -12 ELECTRICITY
GIST OF THE LESSON
- Positive and negative charges: The charge acquired by a glass rod when rubbed with silk is called positive charge and the charge acquired by an ebonite rod when rubbed with wool is called negative charge.
- Coulomb: It is the S.I. unit of charge. One coulomb is defined as that amount of charge which repels an equal and similar charge with a force of 9 x 109 N when placed in vacuum at a distance of 1 meter from it. Charge on an electron = -1.6 x 10-19 coulomb.
- Static and current electricities: Static electricity deals with the electric charges at rest while the current electricity deals with the electric charges in motion.
- Conductor: A substance which allows passage of electric charges through it easily is called a ‘conductor’. A conductor offers very low resistance to the flow of current. For example copper, silver, aluminium etc.
- Insulator: A substance that has infinitely high resistance does not allow electric current to flow through it. It is called an ‘insulator’. For example rubber, glass, plastic, ebonite etc.
- Electric current: The flow of electric charges across a cross-section of a conductor constitutes an electric current. It is defined as the rate of flow of the electric charge through any section of a conductor.
Electric current = Charge/Time or I = Q/t
Electric current is a scalar quantity.
- Ampere: It is the S.I. unit of current. If one coulomb of charge flows through any section of a conductor in one second, then current through it is said to be one ampere. 1 ampere = 1 coulomb/1 second or 1 A = 1C/1s = 1Cs-1 1 milliampere = 1 mA = 10-3 A 1 microampere = 1µA = 10-6 A
- Electric circuit: The closed path along which electric current flows is called an ‘electric circuit’.
- Conventional current: Conventionally, the direction of motion of positive charges is taken as the direction of current. The direction of conventional current is opposite to that of the negatively charged electrons.
- Electric field: It is the region around a charged body within which its influence can be experienced. Read more…
Categories: CBSE Physics, Downloads, Model Question Papers, Numerical, Question Bank Tags: Ampere, Business, Electric charge, Electric current, Electric vehicle, Energy, Static electricity, Technology
Summative Assessment 1 (SA1) Sample Papers for class 9 Physics
The Summative Assessment 1 is about to begin. As per request from student from various parts of India and abroad, we are publishing some solved sample papers in Physics, which we think, would help you in scoring better marks in the forthcoming SA1 exams.
(Based on Motion)
Class 9 Physics Sample Paper 1 Solved
Class 9 Physics Sample Paper 2 Solved
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Categories: CBSE Physics, Downloads, Mechanics, Model Question Papers, Sample Papers Tags: Assessment for Learning, Education, Educational assessment, Formative assessment, India, Learning, Physics, Summative assessment, Teacher
Download the Free Issue of Physics World Magazine
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