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  • Guess paper for CBSE Class 12 Biology 2013 Set-1

    Find CBSE Board 2013 Class XII  Guess Paper (Set-1). This CBSE Class 12 Biology Guess Paper 2013 (Set -2) will help you to score maximum marks in CBSE class 12 Biology question paper 2013.

    Feb 14, 2013
  • Guess paper for CBSE Class 12 Business Studies 2013 Set-2

    Find CBSE Board 2013 Class XII  Guess Paper (Set-2). This CBSE Class 12 Business Studies Guess Paper 2013 (Set -2) will help you to score maximum marks in CBSE class 12 Business Studies question paper 2013

    Feb 14, 2013
  • Guess paper for CBSE Class 12 Business Studies 2013 Set-1

    Find CBSE Board 2013 Class XII  Guess Paper (Set-1). This CBSE Class 12 Business Studies Guess Paper 2013 (Set -1) will help you to score maximum marks in CBSE class 12 Business Studies question paper 2013

    Feb 14, 2013
  • Guess paper for CBSE Class 12 Chemistry 2013 Set-2

    Find CBSE Board 2013 Class XII  Guess Paper (Set-2). This CBSE Class 12 Chemistry Guess Paper 2013 (Set -2) will help you to score maximum marks in CBSE class 12 Chemistry question paper 2013

    Feb 13, 2013
  • Guess paper for CBSE Class 12 Chemistry 2013 Set-1

    Find CBSE Board 2013 Class XII  Guess Paper (Set-1). This CBSE Class 12 Chemistry Guess Paper 2013 (Set -1) will help you to score maximum marks in CBSE class 12 Chemistry question paper 2013.

    Feb 8, 2013
  • Guess paper for CBSE Class 12 Physics 2013 Set-2

    Find CBSE Board 2013 Class XII  Guess Paper (Set-2). This CBSE Class 12 Physics Guess Paper 2013 (Set -2) will help you to score maximum marks in CBSE class 12 Physics question paper 2013

    Feb 6, 2013
  • Atoms (part-2)

    The negative change of the electron is equal to the positive change if the nucleus. So the whole atom is neutral

    Feb 5, 2013
  • Semiconductor electronics: materials, devices and simple circuits (part-2)

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

    Feb 5, 2013
  • Semiconductor Electronics: Materials, Devices and Simple circuits (part-1)

    classification of material like insulators, metal and semiconductor are done on the basis of valance band and conduction band.

    Feb 5, 2013
  • Electromagnetic waves (part-2)

    The spectrum of electromagnetic waves stretches, in principle, over an infinite range of wavelengths. Different regions are known by different names; γ-rays, X-rays, ultraviolet rays, visible rays, infrared rays, microwaves and radio waves in order of increasing wavelength from 10–2 Å or 10–12 m to 106 m..

    Feb 5, 2013
  • Electromagnetic waves (part-1)

    Maxwell found an inconsistency in the Ampere’s law and suggested the existence of an additional current, called displacement current, to remove this inconsistency. This displacement current is due to time-varying electric field acts as a source of magnetic field in exactly the same way as conduction current.

    Feb 5, 2013
  • Communication systems (part-2)

    Every message signal occupies a range of frequencies. The bandwidth of a message signal refers to the band of frequencies, which are necessary for satisfactory transmission of the information contained in the signal.

    Feb 5, 2013
  • Atoms (part-1)

    The size of the nucleus very small and also the density of the nucleus is very high. The estimated size of the nucleus is one Fermi. The centre space of atom is empty

    Feb 5, 2013
  • Communication systems (part-1)

    Communication pervades all stages of life of all living creatures. Irrespective of its nature, every communication system has three essential elements- transmitter, medium/channel and receiver.

    Feb 5, 2013
  • Nuclei (part-2)

    Nuclear force is defined as the force between any two nucleons is called nuclear force. It can be force between proton, neutron proton, and neutron. Nuclear force is always attractive and is independent of charge. It is the strongest force in nature

    Feb 5, 2013
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