vector field rotation

It was mentioned earlier that, displacement vectors are added to displacement vectors, or velocity vectors are added to velocity vectors. Just as it is meaningless to add scalar quantities of different kinds, such as mass and temperature, so also it is meani..

>Similarly, by referring to the figure belo..

It was mentioned earlier that, displacement vectors are added to displacement vectors, or velocity vectors are added to velocity vectors. Just as it is meaningless to add scalar quantities of different kinds, such as mass and temperature, so also it is ..

Imagine rotating a right handed screw whose axis is perpendicular to the plane formed by a and b so as to twist it from a to b through the angle p between the..

The gravitational field intensity at a point is defined as the force experienced by a unit mass placed at that poin..

Potential Energy of a Single Charge - In the previous chapter, we learnt about specific charge, its location, and its electric field, but here we are considering the potential energy of a charge, in an external field. Consider an external electric field 'E' produced by..

Rules for Determining the Direction of Magnetic Field - The direction of magnetic field around a current carrying conductor can be determined by using one of the laws given here. Rule Pictorial Representation Right Hand Thumb Rule Imagine that you are holding the conductor in yo..

Summary - Electric charge is a basic property of all matter. Unlike charges attract, like charges repel. Conductor allow flow of electric charges through them while insulators don't. Electric charges have three basic properties (a) Additivity (b) Quantisation (c) Conservation Coulomb's law: the Ele..

Selection of crops for rotation depends on soil condition, moisture condition, length of rainy season, type of inputs available (irrigation, fertiliser, pesticide, labour and machine power), risk involved, duration of crop (annual, biennial or perennial) and marketing and processing faci..

Ideally, the evaluation of a crop is done on the basis of total production and the amount of input used, but when different crops are grown in the same field the assessment becomes difficult. Different methods of crop assessment are adopted. Cropping Index The cropping index of a cro..