5 relationships of physical quantities

Everything that we use in our daily life is ultimately governed by principles of physics. All gadgets we use everyday at home, bicycles and cars, all different types of machinery and instruments, work on principles of physics. Hence to understand even the elementary working of t..

Phasors are vectors, which rotate around an origin with a angular speed They have the following properties. (i) Phasors rotate clockwise about the origin with angular speed equal to the angular frequency of current and voltage. (ii) The length of the phasors represent the amplitude of the alternati..

The above figure shows the electric field of a positive point charge. The electric field is directed away from the charge and potential is positive at any finite distance from the charge. If we move away from the charge, i.e., in the direction of the electric field we move towards th..

De-Broglie noted that according to the theory of relativity, the role played by momentum 'P' and the energy 'E' of the particle is done by angular frequency ' w ' and the propagation vector 'k' of a wave. According to Einstein relation E = mc 2 Where 'm' is the mass of the particle and 'c' = is..

1 newton = 1kg x 1 m s - 2 = 1000 g x 100 cm s - 2 [F = ma] = 100000 g cm s - 2 = 10 5 dyne As discussed earlier, the relationship between force, mass and acceleration is expressed by the equation, F = ma Now if no force acts on a body (F = 0) 0 = ma But m, being mass ..

At last in 1789 a system of measurement was invented based upon the powers of ten. Each unit quantity was divided into ten parts and each of these parts into further ten and so on. Multiples of the unit are ten, one hundred, one thousand etc. This was very logical. Once the size of the u..

Advantages of Dimensional Analysis - Dimensional equations are used to validate the correctness of a physical equation. Dimensional equations are used to derive correct relationship between different physical quantities. Dimensional equations are used to conv..

Mirror formula is the relationship between object distance (u), image distance (v) and focal lengt..

Mirror Formula (Concave Mirror) - Mirror formula is the relationship between object distance (u), image distance (v) and focal lengt..

>Similarly, by referring to the figure belo..