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CBSE Class 12 Study Material

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  • Ray optics and optical instruments (part-1)

    Ray optics and optical instruments is the most important chapter in class 12 physics as per NCERT. This

    May 30, 2014
  • Alternating Current (Part-1)

    In alternating current (AC, also ac), the flow of electric charge periodically reverses direction. Audio and Radio signals carried on electrical wires are also examples of alternating current.

    May 30, 2014
  • Alternating Current (Part-2)

    The induced current opposes the cause of its origin. Len’s law is in accordance with the law of conservation of energy.

    May 21, 2013
  • Electromagnetic induction (part-2)

    The induced current opposes the cause of its origin. Len’s law is in accordance with the law of conservation of energy.

    May 21, 2013
  • Electromagnetic induction (part-1)

    The magnetic flux through a surface of area A placed in a uniform magnetic field B. Faraday’s laws of induction imply that the emf induced in a coil of N turns is directly related to the rate of change of flux through it

    May 30, 2014
  • Magnetism and matter (part-2)

    The various features of the Earth's magnetic field vary in a predictable way across the surface of the globe.

    May 30, 2014
  • Magnetism and matter (part-1)

    We can define a bar magnet as it is simply a permanent magnet having a shape of a bar. It has a north and a south pole. Its magnetic field is said to go out from the North Pole and in to the South Pole.

    May 30, 2014
  • Moving charges and magnetism (part-2)

    We can generate magnetic fields by using and the toroid and solenoid . The television uses the solenoid to generate magnetic fields needed

    May 30, 2014
  • Moving charges and magnetism (part-1)

    To describes how an electric field affects and is affected by a medium , we can use Electric permittivity. It is determined by the ability of a material to polarise in response to an applied field, and thereby to cancel, partially, the field inside the material.  

    May 31, 2013
  • Probability (part-2)

    We can express probability as: the number of occurrences of a targeted event divided by the number of occurrences plus the number of failures of occurrences.

    May 30, 2014
  • Probability (part-1)

    The branch of mathematics which deals with calculating the likelihood of a given event's occurrence, which is expressed as a number between 1 and 0 is termed as probability. An event with a probability of 1 can be considered a certainty.

    May 30, 2014
  • Linear Programming (part-2)

    Linear optimization is the alternate name given to the term linear programming. Sometimes it also known as, is the problem of maximizing or minimizing a linear function over a convex polyhedron. Simplistically, linear programming is the optimization of an outcome based on some set of constraints using a linear mathematical model.

    May 30, 2014
  • Linear Programming (part-1)

    Linear optimization is the alternate name given to the term linear programming. Sometimes it also known as, is the problem of maximizing or minimizing a linear function over a convex polyhedron. Simplistically, linear programming is the optimization of an outcome based on some set of constraints using a linear mathematical model.

    May 30, 2014
  • Three-dimensional Geometry (part-2)

    Angle between skew lines is the angle between two intersecting lines drawn from any point (preferably through the origin) parallel to each of the skew lines.

    May 30, 2014
  • Three-dimensional Geometry (part-1)

    In this video we will talk about the direction cosines and direction ratios of a line joining two points and also discuss about the equations of lines and planes in space under different conditions, angle between two lines, two planes, a line and a plane, shortest distance between two skew lines and distance of a point from a plane

    May 30, 2014
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