one who keep on changing principles

AC Dynamo is based on the phenomenon of electromagnetic induction. That is, when the relative orientation between the coil and the magnetic field changes, the flux linked with the coil changes and this induces a current in the coil. As the armature coil rotates, the angle Q..

A mixture of solid substances, such as camphor, benzoic acid, ammonium chloride, iodine etc., containing non-volatile substances, when heated, change directly into vapour without passing through the liquid stat..

This method is based on the fact that: Total vapor pressure above a mixture of two immiscible liquids is equal to the sum of the vapor pressures of the individual liquids i.e., P t o t a l = P 1 + P 2 Hence, P 2 = P t o t a l - P 1 A liquid boils at the tempe..

Principle of Duality - The dual of any statement in a Boolean algebra is the statement obtained by interchanging + and ., and simultaneously inter-changing the elements 0 and 1 in the stateme..

The dual of any statement in a Boolean algebra is the statement obtained by interchanging + and ., and simultaneously inter-changing the elements 0 and 1 in the statemen..

The state of equilibrium in any system depends upon factors present in the system, such as temperature, pressure and concentration of various species. These factors are called reaction variables or parameters. A change in any one of the parameters may affect the position of the ..

Heisenberg, in 1927 pointed out that it is not possible to measure simultaneously both the momentum (or velocity) and the position of a microscopic particle with absolute accuracy. Mathematically this may be expressed..

fig 1.1 - The change in the path of electron by the impact of striking photon The above figure shows as to how the position of an electron changes by the impact of photon. The collision of photon with the electron sends it in an unpredictable direction. Thus, it is not..

Principles of Light Modulation - Let us consider the case of electromagnetic radiation in an ionised medium. Suppose we increase/decrease the amplitude of an electromagnetic wave passing through an ionised gas. These modulations of the electromagnetic wave could contain coded information ..

Later on, an atom of oxygen was preferred as standard by taking its mass as 16 units. In 1961, the international union of chemists selected the most stable isotope of carbon (C-12 isotope) as standard for comparison. For example, if 1 atom of Na weights as much as 23 parts of 1..